Finding the Fourth Proportional to 9,561.18, 13,193.22 and 5,581.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,561.18 : 13,193.22 = 5,581.74 : x
2. Step 2: Convert to fraction form
   9,561.18/13,193.22 = 5,581.74/x
3. Step 3: Cross multiply
   9,561.18x = 13,193.22 × 5,581.74
4. Step 4: Simplify right side
   9,561.18x = 73,641,123.80
5. Step 5: Solve for x
   x = 73,641,123.80/9,561.18
6. Step 6: Final answer
   x = 7,702.10