Finding the Fourth Proportional to 9,079.02, 12,529.35 and 5,100.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,079.02 : 12,529.35 = 5,100.90 : x
2. Step 2: Convert to fraction form
   9,079.02/12,529.35 = 5,100.90/x
3. Step 3: Cross multiply
   9,079.02x = 12,529.35 × 5,100.90
4. Step 4: Simplify right side
   9,079.02x = 63,910,961.42
5. Step 5: Solve for x
   x = 63,910,961.42/9,079.02
6. Step 6: Final answer
   x = 7,039.41