Finding the Fourth Proportional to 31,098.84, 42,916.32 and 16,951.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,098.84 : 42,916.32 = 16,951.68 : x
2. Step 2: Convert to fraction form
   31,098.84/42,916.32 = 16,951.68/x
3. Step 3: Cross multiply
   31,098.84x = 42,916.32 × 16,951.68
4. Step 4: Simplify right side
   31,098.84x = 727,503,723.42
5. Step 5: Solve for x
   x = 727,503,723.42/31,098.84
6. Step 6: Final answer
   x = 23,393.28