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Finding the Fourth Proportional to 15,666.12, 21,619.92 and 8,592.84

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Solution

The fourth proportional to 15,666.12, 21,619.92 and 8,592.84 is: 11,858.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,666.12 : 21,619.92 = 8,592.84 : x
  2. Step 2: Convert to fraction form
    15,666.12/21,619.92 = 8,592.84/x
  3. Step 3: Cross multiply
    15,666.12x = 21,619.92 × 8,592.84
  4. Step 4: Simplify right side
    15,666.12x = 185,776,513.37
  5. Step 5: Solve for x
    x = 185,776,513.37/15,666.12
  6. Step 6: Final answer
    x = 11,858.49

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