Finding the Fourth Proportional to 12,332.61, 18,503.78 and 5,402.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,332.61 : 18,503.78 = 5,402.25 : x
2. Step 2: Convert to fraction form
   12,332.61/18,503.78 = 5,402.25/x
3. Step 3: Cross multiply
   12,332.61x = 18,503.78 × 5,402.25
4. Step 4: Simplify right side
   12,332.61x = 99,962,018.49
5. Step 5: Solve for x
   x = 99,962,018.49/12,332.61
6. Step 6: Final answer
   x = 8,105.50