Finding the Fourth Proportional to 9,046.52, 12,490.30 and 5,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,046.52 : 12,490.30 = 5,648.72 : x
2. Step 2: Convert to fraction form
   9,046.52/12,490.30 = 5,648.72/x
3. Step 3: Cross multiply
   9,046.52x = 12,490.30 × 5,648.72
4. Step 4: Simplify right side
   9,046.52x = 70,554,222.28
5. Step 5: Solve for x
   x = 70,554,222.28/9,046.52
6. Step 6: Final answer
   x = 7,799.05