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Finding the Fourth Proportional to 13,112.88, 19,638.52 and 11,402.44

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Solution

The fourth proportional to 13,112.88, 19,638.52 and 11,402.44 is: 17,076.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.88 : 19,638.52 = 11,402.44 : x
  2. Step 2: Convert to fraction form
    13,112.88/19,638.52 = 11,402.44/x
  3. Step 3: Cross multiply
    13,112.88x = 19,638.52 × 11,402.44
  4. Step 4: Simplify right side
    13,112.88x = 223,927,045.99
  5. Step 5: Solve for x
    x = 223,927,045.99/13,112.88
  6. Step 6: Final answer
    x = 17,076.88

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