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Finding the Fourth Proportional to 84,856.41, 127,285.78 and 21,677.06

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Solution

The fourth proportional to 84,856.41, 127,285.78 and 21,677.06 is: 32,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,856.41 : 127,285.78 = 21,677.06 : x
  2. Step 2: Convert to fraction form
    84,856.41/127,285.78 = 21,677.06/x
  3. Step 3: Cross multiply
    84,856.41x = 127,285.78 × 21,677.06
  4. Step 4: Simplify right side
    84,856.41x = 2,759,181,078.89
  5. Step 5: Solve for x
    x = 2,759,181,078.89/84,856.41
  6. Step 6: Final answer
    x = 32,515.88

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