Finding the Fourth Proportional to 9,861.60, 13,608.24 and 5,669.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,861.60 : 13,608.24 = 5,669.04 : x
2. Step 2: Convert to fraction form
   9,861.60/13,608.24 = 5,669.04/x
3. Step 3: Cross multiply
   9,861.60x = 13,608.24 × 5,669.04
4. Step 4: Simplify right side
   9,861.60x = 77,145,656.89
5. Step 5: Solve for x
   x = 77,145,656.89/9,861.60
6. Step 6: Final answer
   x = 7,822.83