Finding the Fourth Proportional to 9,680.46, 14,520.72 and 4,132.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,680.46 : 14,520.72 = 4,132.78 : x
2. Step 2: Convert to fraction form
   9,680.46/14,520.72 = 4,132.78/x
3. Step 3: Cross multiply
   9,680.46x = 14,520.72 × 4,132.78
4. Step 4: Simplify right side
   9,680.46x = 60,010,941.20
5. Step 5: Solve for x
   x = 60,010,941.20/9,680.46
6. Step 6: Final answer
   x = 6,199.18