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Finding the Fourth Proportional to 171,298.92, 256,800.72 and 66,191.64

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Solution

The fourth proportional to 171,298.92, 256,800.72 and 66,191.64 is: 99,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,298.92 : 256,800.72 = 66,191.64 : x
  2. Step 2: Convert to fraction form
    171,298.92/256,800.72 = 66,191.64/x
  3. Step 3: Cross multiply
    171,298.92x = 256,800.72 × 66,191.64
  4. Step 4: Simplify right side
    171,298.92x = 16,998,060,809.98
  5. Step 5: Solve for x
    x = 16,998,060,809.98/171,298.92
  6. Step 6: Final answer
    x = 99,230.40

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