Finding the Fourth Proportional to 9,059.68, 12,502.20 and 5,080.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,059.68 : 12,502.20 = 5,080.78 : x
2. Step 2: Convert to fraction form
   9,059.68/12,502.20 = 5,080.78/x
3. Step 3: Cross multiply
   9,059.68x = 12,502.20 × 5,080.78
4. Step 4: Simplify right side
   9,059.68x = 63,520,927.72
5. Step 5: Solve for x
   x = 63,520,927.72/9,059.68
6. Step 6: Final answer
   x = 7,011.39