Finding the Fourth Proportional to 16,931.59, 23,363.39 and 9,761.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,931.59 : 23,363.39 = 9,761.78 : x
2. Step 2: Convert to fraction form
   16,931.59/23,363.39 = 9,761.78/x
3. Step 3: Cross multiply
   16,931.59x = 23,363.39 × 9,761.78
4. Step 4: Simplify right side
   16,931.59x = 228,068,202.57
5. Step 5: Solve for x
   x = 228,068,202.57/16,931.59
6. Step 6: Final answer
   x = 13,469.98