Finding the Fourth Proportional to 9,040.60, 12,476.28 and 5,503.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,040.60 : 12,476.28 = 5,503.72 : x
2. Step 2: Convert to fraction form
   9,040.60/12,476.28 = 5,503.72/x
3. Step 3: Cross multiply
   9,040.60x = 12,476.28 × 5,503.72
4. Step 4: Simplify right side
   9,040.60x = 68,665,951.76
5. Step 5: Solve for x
   x = 68,665,951.76/9,040.60
6. Step 6: Final answer
   x = 7,595.29