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Finding the Fourth Proportional to 92,640.64, 138,969.16 and 26,081.34

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Solution

The fourth proportional to 92,640.64, 138,969.16 and 26,081.34 is: 39,124.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,640.64 : 138,969.16 = 26,081.34 : x
  2. Step 2: Convert to fraction form
    92,640.64/138,969.16 = 26,081.34/x
  3. Step 3: Cross multiply
    92,640.64x = 138,969.16 × 26,081.34
  4. Step 4: Simplify right side
    92,640.64x = 3,624,502,070.16
  5. Step 5: Solve for x
    x = 3,624,502,070.16/92,640.64
  6. Step 6: Final answer
    x = 39,124.32

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