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Finding the Fourth Proportional to 19,043.22, 28,571.69 and 8,512.38

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Solution

The fourth proportional to 19,043.22, 28,571.69 and 8,512.38 is: 12,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,043.22 : 28,571.69 = 8,512.38 : x
  2. Step 2: Convert to fraction form
    19,043.22/28,571.69 = 8,512.38/x
  3. Step 3: Cross multiply
    19,043.22x = 28,571.69 × 8,512.38
  4. Step 4: Simplify right side
    19,043.22x = 243,213,082.52
  5. Step 5: Solve for x
    x = 243,213,082.52/19,043.22
  6. Step 6: Final answer
    x = 12,771.64

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