Finding the Fourth Proportional to 8,481.62, 12,705.15 and 5,561.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,481.62 : 12,705.15 = 5,561.30 : x
2. Step 2: Convert to fraction form
   8,481.62/12,705.15 = 5,561.30/x
3. Step 3: Cross multiply
   8,481.62x = 12,705.15 × 5,561.30
4. Step 4: Simplify right side
   8,481.62x = 70,657,150.70
5. Step 5: Solve for x
   x = 70,657,150.70/8,481.62
6. Step 6: Final answer
   x = 8,330.62