Finding the Fourth Proportional to 9,861.24, 13,608.58 and 5,612.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,861.24 : 13,608.58 = 5,612.62 : x
2. Step 2: Convert to fraction form
   9,861.24/13,608.58 = 5,612.62/x
3. Step 3: Cross multiply
   9,861.24x = 13,608.58 × 5,612.62
4. Step 4: Simplify right side
   9,861.24x = 76,379,788.28
5. Step 5: Solve for x
   x = 76,379,788.28/9,861.24
6. Step 6: Final answer
   x = 7,745.45