Finding the Fourth Proportional to 31,052.83, 42,853.67 and 16,906.45

Step by Step Solution

1. Step 1: Write the proportion equation
   31,052.83 : 42,853.67 = 16,906.45 : x
2. Step 2: Convert to fraction form
   31,052.83/42,853.67 = 16,906.45/x
3. Step 3: Cross multiply
   31,052.83x = 42,853.67 × 16,906.45
4. Step 4: Simplify right side
   31,052.83x = 724,503,364.30
5. Step 5: Solve for x
   x = 724,503,364.30/31,052.83
6. Step 6: Final answer
   x = 23,331.32