Finding the Fourth Proportional to 31,037.82, 42,832.17 and 16,890.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,037.82 : 42,832.17 = 16,890.75 : x
2. Step 2: Convert to fraction form
   31,037.82/42,832.17 = 16,890.75/x
3. Step 3: Cross multiply
   31,037.82x = 42,832.17 × 16,890.75
4. Step 4: Simplify right side
   31,037.82x = 723,467,475.43
5. Step 5: Solve for x
   x = 723,467,475.43/31,037.82
6. Step 6: Final answer
   x = 23,309.22