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Finding the Fourth Proportional to 90,364.28, 124,706.94 and 56,392.88

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Solution

The fourth proportional to 90,364.28, 124,706.94 and 56,392.88 is: 77,824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,364.28 : 124,706.94 = 56,392.88 : x
  2. Step 2: Convert to fraction form
    90,364.28/124,706.94 = 56,392.88/x
  3. Step 3: Cross multiply
    90,364.28x = 124,706.94 × 56,392.88
  4. Step 4: Simplify right side
    90,364.28x = 7,032,583,502.59
  5. Step 5: Solve for x
    x = 7,032,583,502.59/90,364.28
  6. Step 6: Final answer
    x = 77,824.82

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