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Finding the Fourth Proportional to 85,563.44, 128,335.34 and 22,389.66

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Solution

The fourth proportional to 85,563.44, 128,335.34 and 22,389.66 is: 33,581.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,563.44 : 128,335.34 = 22,389.66 : x
  2. Step 2: Convert to fraction form
    85,563.44/128,335.34 = 22,389.66/x
  3. Step 3: Cross multiply
    85,563.44x = 128,335.34 × 22,389.66
  4. Step 4: Simplify right side
    85,563.44x = 2,873,384,628.58
  5. Step 5: Solve for x
    x = 2,873,384,628.58/85,563.44
  6. Step 6: Final answer
    x = 33,581.92

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