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Finding the Fourth Proportional to 108,728.80, 163,093.20 and 104,792.20

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Solution

The fourth proportional to 108,728.80, 163,093.20 and 104,792.20 is: 157,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,728.80 : 163,093.20 = 104,792.20 : x
  2. Step 2: Convert to fraction form
    108,728.80/163,093.20 = 104,792.20/x
  3. Step 3: Cross multiply
    108,728.80x = 163,093.20 × 104,792.20
  4. Step 4: Simplify right side
    108,728.80x = 17,090,895,233.04
  5. Step 5: Solve for x
    x = 17,090,895,233.04/108,728.80
  6. Step 6: Final answer
    x = 157,188.30

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