Finding the Fourth Proportional to 16,781.59, 25,168.48 and 7,416.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,781.59 : 25,168.48 = 7,416.50 : x
2. Step 2: Convert to fraction form
   16,781.59/25,168.48 = 7,416.50/x
3. Step 3: Cross multiply
   16,781.59x = 25,168.48 × 7,416.50
4. Step 4: Simplify right side
   16,781.59x = 186,662,031.92
5. Step 5: Solve for x
   x = 186,662,031.92/16,781.59
6. Step 6: Final answer
   x = 11,123.02