Finding the Fourth Proportional to 9,039.86, 12,472.85 and 5,260.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,039.86 : 12,472.85 = 5,260.73 : x
2. Step 2: Convert to fraction form
   9,039.86/12,472.85 = 5,260.73/x
3. Step 3: Cross multiply
   9,039.86x = 12,472.85 × 5,260.73
4. Step 4: Simplify right side
   9,039.86x = 65,616,340.51
5. Step 5: Solve for x
   x = 65,616,340.51/9,039.86
6. Step 6: Final answer
   x = 7,258.56