Finding the Fourth Proportional to 31,082.88, 42,893.94 and 16,935.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,082.88 : 42,893.94 = 16,935.42 : x
2. Step 2: Convert to fraction form
   31,082.88/42,893.94 = 16,935.42/x
3. Step 3: Cross multiply
   31,082.88x = 42,893.94 × 16,935.42
4. Step 4: Simplify right side
   31,082.88x = 726,426,889.35
5. Step 5: Solve for x
   x = 726,426,889.35/31,082.88
6. Step 6: Final answer
   x = 23,370.64