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Finding the Fourth Proportional to 65,863.40, 98,805.38 and 21,479.83

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Solution

The fourth proportional to 65,863.40, 98,805.38 and 21,479.83 is: 32,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.40 : 98,805.38 = 21,479.83 : x
  2. Step 2: Convert to fraction form
    65,863.40/98,805.38 = 21,479.83/x
  3. Step 3: Cross multiply
    65,863.40x = 98,805.38 × 21,479.83
  4. Step 4: Simplify right side
    65,863.40x = 2,122,322,765.49
  5. Step 5: Solve for x
    x = 2,122,322,765.49/65,863.40
  6. Step 6: Final answer
    x = 32,223.10

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