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Finding the Fourth Proportional to 74,962.88, 112,427.76 and 21,643.28

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Solution

The fourth proportional to 74,962.88, 112,427.76 and 21,643.28 is: 32,460.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,962.88 : 112,427.76 = 21,643.28 : x
  2. Step 2: Convert to fraction form
    74,962.88/112,427.76 = 21,643.28/x
  3. Step 3: Cross multiply
    74,962.88x = 112,427.76 × 21,643.28
  4. Step 4: Simplify right side
    74,962.88x = 2,433,305,489.45
  5. Step 5: Solve for x
    x = 2,433,305,489.45/74,962.88
  6. Step 6: Final answer
    x = 32,460.14

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