Finding the Fourth Proportional to 8,755.60, 12,082.24 and 4,978.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,755.60 : 12,082.24 = 4,978.24 : x
2. Step 2: Convert to fraction form
   8,755.60/12,082.24 = 4,978.24/x
3. Step 3: Cross multiply
   8,755.60x = 12,082.24 × 4,978.24
4. Step 4: Simplify right side
   8,755.60x = 60,148,290.46
5. Step 5: Solve for x
   x = 60,148,290.46/8,755.60
6. Step 6: Final answer
   x = 6,869.69