Finding the Fourth Proportional to 9,079.80, 12,530.52 and 5,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,079.80 : 12,530.52 = 5,100.72 : x
2. Step 2: Convert to fraction form
   9,079.80/12,530.52 = 5,100.72/x
3. Step 3: Cross multiply
   9,079.80x = 12,530.52 × 5,100.72
4. Step 4: Simplify right side
   9,079.80x = 63,914,673.97
5. Step 5: Solve for x
   x = 63,914,673.97/9,079.80
6. Step 6: Final answer
   x = 7,039.22