Finding the Fourth Proportional to 9,043.48, 12,479.98 and 5,064.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,043.48 : 12,479.98 = 5,064.60 : x
2. Step 2: Convert to fraction form
   9,043.48/12,479.98 = 5,064.60/x
3. Step 3: Cross multiply
   9,043.48x = 12,479.98 × 5,064.60
4. Step 4: Simplify right side
   9,043.48x = 63,206,106.71
5. Step 5: Solve for x
   x = 63,206,106.71/9,043.48
6. Step 6: Final answer
   x = 6,989.14