Finding the Fourth Proportional to 31,057.83, 42,858.37 and 16,910.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,057.83 : 42,858.37 = 16,910.63 : x
2. Step 2: Convert to fraction form
   31,057.83/42,858.37 = 16,910.63/x
3. Step 3: Cross multiply
   31,057.83x = 42,858.37 × 16,910.63
4. Step 4: Simplify right side
   31,057.83x = 724,762,037.47
5. Step 5: Solve for x
   x = 724,762,037.47/31,057.83
6. Step 6: Final answer
   x = 23,335.89