Finding the Fourth Proportional to 9,651.12, 13,312.20 and 7,658.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,651.12 : 13,312.20 = 7,658.52 : x
2. Step 2: Convert to fraction form
   9,651.12/13,312.20 = 7,658.52/x
3. Step 3: Cross multiply
   9,651.12x = 13,312.20 × 7,658.52
4. Step 4: Simplify right side
   9,651.12x = 101,951,749.94
5. Step 5: Solve for x
   x = 101,951,749.94/9,651.12
6. Step 6: Final answer
   x = 10,563.72