Finding the Fourth Proportional to 9,043.92, 12,481.06 and 5,064.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,043.92 : 12,481.06 = 5,064.78 : x
2. Step 2: Convert to fraction form
   9,043.92/12,481.06 = 5,064.78/x
3. Step 3: Cross multiply
   9,043.92x = 12,481.06 × 5,064.78
4. Step 4: Simplify right side
   9,043.92x = 63,213,823.07
5. Step 5: Solve for x
   x = 63,213,823.07/9,043.92
6. Step 6: Final answer
   x = 6,989.65