Finding the Fourth Proportional to 9,631.30, 13,290.56 and 5,597.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,631.30 : 13,290.56 = 5,597.78 : x
2. Step 2: Convert to fraction form
   9,631.30/13,290.56 = 5,597.78/x
3. Step 3: Cross multiply
   9,631.30x = 13,290.56 × 5,597.78
4. Step 4: Simplify right side
   9,631.30x = 74,397,630.96
5. Step 5: Solve for x
   x = 74,397,630.96/9,631.30
6. Step 6: Final answer
   x = 7,724.57