Finding the Fourth Proportional to 9,900.31, 13,662.88 and 5,652.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.31 : 13,662.88 = 5,652.52 : x
2. Step 2: Convert to fraction form
   9,900.31/13,662.88 = 5,652.52/x
3. Step 3: Cross multiply
   9,900.31x = 13,662.88 × 5,652.52
4. Step 4: Simplify right side
   9,900.31x = 77,229,702.46
5. Step 5: Solve for x
   x = 77,229,702.46/9,900.31
6. Step 6: Final answer
   x = 7,800.74