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Finding the Fourth Proportional to 85,540.37, 128,327.63 and 26,373.78

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Solution

The fourth proportional to 85,540.37, 128,327.63 and 26,373.78 is: 39,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,540.37 : 128,327.63 = 26,373.78 : x
  2. Step 2: Convert to fraction form
    85,540.37/128,327.63 = 26,373.78/x
  3. Step 3: Cross multiply
    85,540.37x = 128,327.63 × 26,373.78
  4. Step 4: Simplify right side
    85,540.37x = 3,384,484,549.67
  5. Step 5: Solve for x
    x = 3,384,484,549.67/85,540.37
  6. Step 6: Final answer
    x = 39,565.94

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