Finding the Fourth Proportional to 9,040.32, 12,475.39 and 5,007.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,040.32 : 12,475.39 = 5,007.28 : x
2. Step 2: Convert to fraction form
   9,040.32/12,475.39 = 5,007.28/x
3. Step 3: Cross multiply
   9,040.32x = 12,475.39 × 5,007.28
4. Step 4: Simplify right side
   9,040.32x = 62,467,770.84
5. Step 5: Solve for x
   x = 62,467,770.84/9,040.32
6. Step 6: Final answer
   x = 6,909.91