Finding the Fourth Proportional to 9,041.92, 12,478.30 and 5,062.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,041.92 : 12,478.30 = 5,062.78 : x
2. Step 2: Convert to fraction form
   9,041.92/12,478.30 = 5,062.78/x
3. Step 3: Cross multiply
   9,041.92x = 12,478.30 × 5,062.78
4. Step 4: Simplify right side
   9,041.92x = 63,174,887.67
5. Step 5: Solve for x
   x = 63,174,887.67/9,041.92
6. Step 6: Final answer
   x = 6,986.89