Finding the Fourth Proportional to 9,830.88, 13,566.12 and 5,581.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,830.88 : 13,566.12 = 5,581.88 : x
2. Step 2: Convert to fraction form
   9,830.88/13,566.12 = 5,581.88/x
3. Step 3: Cross multiply
   9,830.88x = 13,566.12 × 5,581.88
4. Step 4: Simplify right side
   9,830.88x = 75,724,453.91
5. Step 5: Solve for x
   x = 75,724,453.91/9,830.88
6. Step 6: Final answer
   x = 7,702.71