Finding the Fourth Proportional to 21,032.28, 31,544.72 and 7,702.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,032.28 : 31,544.72 = 7,702.52 : x
2. Step 2: Convert to fraction form
   21,032.28/31,544.72 = 7,702.52/x
3. Step 3: Cross multiply
   21,032.28x = 31,544.72 × 7,702.52
4. Step 4: Simplify right side
   21,032.28x = 242,973,836.69
5. Step 5: Solve for x
   x = 242,973,836.69/21,032.28
6. Step 6: Final answer
   x = 11,552.42