Finding the Fourth Proportional to 9,558.81, 13,191.98 and 5,581.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,558.81 : 13,191.98 = 5,581.22 : x
2. Step 2: Convert to fraction form
   9,558.81/13,191.98 = 5,581.22/x
3. Step 3: Cross multiply
   9,558.81x = 13,191.98 × 5,581.22
4. Step 4: Simplify right side
   9,558.81x = 73,627,248.75
5. Step 5: Solve for x
   x = 73,627,248.75/9,558.81
6. Step 6: Final answer
   x = 7,702.55