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Finding the Fourth Proportional to 263,267.91, 394,901.52 and 85,774.62

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Solution

The fourth proportional to 263,267.91, 394,901.52 and 85,774.62 is: 128,661.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,267.91 : 394,901.52 = 85,774.62 : x
  2. Step 2: Convert to fraction form
    263,267.91/394,901.52 = 85,774.62/x
  3. Step 3: Cross multiply
    263,267.91x = 394,901.52 × 85,774.62
  4. Step 4: Simplify right side
    263,267.91x = 33,872,527,815.42
  5. Step 5: Solve for x
    x = 33,872,527,815.42/263,267.91
  6. Step 6: Final answer
    x = 128,661.82

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