Finding the Fourth Proportional to 9,113.16, 12,577.50 and 5,575.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,113.16 : 12,577.50 = 5,575.80 : x
2. Step 2: Convert to fraction form
   9,113.16/12,577.50 = 5,575.80/x
3. Step 3: Cross multiply
   9,113.16x = 12,577.50 × 5,575.80
4. Step 4: Simplify right side
   9,113.16x = 70,129,624.50
5. Step 5: Solve for x
   x = 70,129,624.50/9,113.16
6. Step 6: Final answer
   x = 7,695.42