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Finding the Fourth Proportional to 13,917.88, 19,195.50 and 12,235.72

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Solution

The fourth proportional to 13,917.88, 19,195.50 and 12,235.72 is: 16,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.88 : 19,195.50 = 12,235.72 : x
  2. Step 2: Convert to fraction form
    13,917.88/19,195.50 = 12,235.72/x
  3. Step 3: Cross multiply
    13,917.88x = 19,195.50 × 12,235.72
  4. Step 4: Simplify right side
    13,917.88x = 234,870,763.26
  5. Step 5: Solve for x
    x = 234,870,763.26/13,917.88
  6. Step 6: Final answer
    x = 16,875.47

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