Finding the Fourth Proportional to 9,078.68, 12,529.25 and 5,100.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078.68 : 12,529.25 = 5,100.03 : x
2. Step 2: Convert to fraction form
   9,078.68/12,529.25 = 5,100.03/x
3. Step 3: Cross multiply
   9,078.68x = 12,529.25 × 5,100.03
4. Step 4: Simplify right side
   9,078.68x = 63,899,497.52
5. Step 5: Solve for x
   x = 63,899,497.52/9,078.68
6. Step 6: Final answer
   x = 7,038.41