Finding the Fourth Proportional to 8,652.72, 12,992.04 and 8,350.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,652.72 : 12,992.04 = 8,350.32 : x
2. Step 2: Convert to fraction form
   8,652.72/12,992.04 = 8,350.32/x
3. Step 3: Cross multiply
   8,652.72x = 12,992.04 × 8,350.32
4. Step 4: Simplify right side
   8,652.72x = 108,487,691.45
5. Step 5: Solve for x
   x = 108,487,691.45/8,652.72
6. Step 6: Final answer
   x = 12,537.99