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Finding the Fourth Proportional to 12,958.24, 17,858.94 and 9,749.76

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Solution

The fourth proportional to 12,958.24, 17,858.94 and 9,749.76 is: 13,437.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,958.24 : 17,858.94 = 9,749.76 : x
  2. Step 2: Convert to fraction form
    12,958.24/17,858.94 = 9,749.76/x
  3. Step 3: Cross multiply
    12,958.24x = 17,858.94 × 9,749.76
  4. Step 4: Simplify right side
    12,958.24x = 174,120,378.85
  5. Step 5: Solve for x
    x = 174,120,378.85/12,958.24
  6. Step 6: Final answer
    x = 13,437.04

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