Finding the Fourth Proportional to 9,042.24, 12,478.72 and 5,062.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042.24 : 12,478.72 = 5,062.56 : x
2. Step 2: Convert to fraction form
   9,042.24/12,478.72 = 5,062.56/x
3. Step 3: Cross multiply
   9,042.24x = 12,478.72 × 5,062.56
4. Step 4: Simplify right side
   9,042.24x = 63,174,268.72
5. Step 5: Solve for x
   x = 63,174,268.72/9,042.24
6. Step 6: Final answer
   x = 6,986.57