Finding the Fourth Proportional to 31,046.74, 42,843.26 and 16,899.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,046.74 : 42,843.26 = 16,899.59 : x
2. Step 2: Convert to fraction form
   31,046.74/42,843.26 = 16,899.59/x
3. Step 3: Cross multiply
   31,046.74x = 42,843.26 × 16,899.59
4. Step 4: Simplify right side
   31,046.74x = 724,033,677.62
5. Step 5: Solve for x
   x = 724,033,677.62/31,046.74
6. Step 6: Final answer
   x = 23,320.77