Finding the Fourth Proportional to 31,046.52, 42,843.96 and 16,899.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,046.52 : 42,843.96 = 16,899.42 : x
2. Step 2: Convert to fraction form
   31,046.52/42,843.96 = 16,899.42/x
3. Step 3: Cross multiply
   31,046.52x = 42,843.96 × 16,899.42
4. Step 4: Simplify right side
   31,046.52x = 724,038,074.50
5. Step 5: Solve for x
   x = 724,038,074.50/31,046.52
6. Step 6: Final answer
   x = 23,321.07