Finding the Fourth Proportional to 31,053.51, 42,854.04 and 16,906.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,053.51 : 42,854.04 = 16,906.50 : x
2. Step 2: Convert to fraction form
   31,053.51/42,854.04 = 16,906.50/x
3. Step 3: Cross multiply
   31,053.51x = 42,854.04 × 16,906.50
4. Step 4: Simplify right side
   31,053.51x = 724,511,827.26
5. Step 5: Solve for x
   x = 724,511,827.26/31,053.51
6. Step 6: Final answer
   x = 23,331.08