Finding the Fourth Proportional to 13,472.43, 18,591.42 and 7,503.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,472.43 : 18,591.42 = 7,503.94 : x
2. Step 2: Convert to fraction form
   13,472.43/18,591.42 = 7,503.94/x
3. Step 3: Cross multiply
   13,472.43x = 18,591.42 × 7,503.94
4. Step 4: Simplify right side
   13,472.43x = 139,508,951.57
5. Step 5: Solve for x
   x = 139,508,951.57/13,472.43
6. Step 6: Final answer
   x = 10,355.15