Finding the Fourth Proportional to 9,007.55, 12,429.90 and 5,028.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,007.55 : 12,429.90 = 5,028.92 : x
2. Step 2: Convert to fraction form
   9,007.55/12,429.90 = 5,028.92/x
3. Step 3: Cross multiply
   9,007.55x = 12,429.90 × 5,028.92
4. Step 4: Simplify right side
   9,007.55x = 62,508,910.56
5. Step 5: Solve for x
   x = 62,508,910.56/9,007.55
6. Step 6: Final answer
   x = 6,939.61