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Finding the Fourth Proportional to 68,978.48, 103,459.08 and 57,366.32

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Solution

The fourth proportional to 68,978.48, 103,459.08 and 57,366.32 is: 86,042.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,978.48 : 103,459.08 = 57,366.32 : x
  2. Step 2: Convert to fraction form
    68,978.48/103,459.08 = 57,366.32/x
  3. Step 3: Cross multiply
    68,978.48x = 103,459.08 × 57,366.32
  4. Step 4: Simplify right side
    68,978.48x = 5,935,066,690.19
  5. Step 5: Solve for x
    x = 5,935,066,690.19/68,978.48
  6. Step 6: Final answer
    x = 86,042.29

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