Finding the Fourth Proportional to 11,952.90, 16,488.27 and 7,171.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,952.90 : 16,488.27 = 7,171.61 : x
2. Step 2: Convert to fraction form
   11,952.90/16,488.27 = 7,171.61/x
3. Step 3: Cross multiply
   11,952.90x = 16,488.27 × 7,171.61
4. Step 4: Simplify right side
   11,952.90x = 118,247,359.57
5. Step 5: Solve for x
   x = 118,247,359.57/11,952.90
6. Step 6: Final answer
   x = 9,892.78