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Finding the Fourth Proportional to 89,727.84, 134,593.92 and 42,929.28

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Solution

The fourth proportional to 89,727.84, 134,593.92 and 42,929.28 is: 64,394.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,727.84 : 134,593.92 = 42,929.28 : x
  2. Step 2: Convert to fraction form
    89,727.84/134,593.92 = 42,929.28/x
  3. Step 3: Cross multiply
    89,727.84x = 134,593.92 × 42,929.28
  4. Step 4: Simplify right side
    89,727.84x = 5,778,020,077.98
  5. Step 5: Solve for x
    x = 5,778,020,077.98/89,727.84
  6. Step 6: Final answer
    x = 64,394.95

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