Finding the Fourth Proportional to 9,543.72, 14,320.68 and 7,187.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,543.72 : 14,320.68 = 7,187.52 : x
2. Step 2: Convert to fraction form
   9,543.72/14,320.68 = 7,187.52/x
3. Step 3: Cross multiply
   9,543.72x = 14,320.68 × 7,187.52
4. Step 4: Simplify right side
   9,543.72x = 102,930,173.91
5. Step 5: Solve for x
   x = 102,930,173.91/9,543.72
6. Step 6: Final answer
   x = 10,785.12