Finding the Fourth Proportional to 11,763.52, 16,239 and 7,520.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,763.52 : 16,239 = 7,520.38 : x
2. Step 2: Convert to fraction form
   11,763.52/16,239 = 7,520.38/x
3. Step 3: Cross multiply
   11,763.52x = 16,239 × 7,520.38
4. Step 4: Simplify right side
   11,763.52x = 122,123,450.82
5. Step 5: Solve for x
   x = 122,123,450.82/11,763.52
6. Step 6: Final answer
   x = 10,381.54