Finding the Fourth Proportional to 31,052.16, 42,850.89 and 16,904.70

Step by Step Solution

1. Step 1: Write the proportion equation
   31,052.16 : 42,850.89 = 16,904.70 : x
2. Step 2: Convert to fraction form
   31,052.16/42,850.89 = 16,904.70/x
3. Step 3: Cross multiply
   31,052.16x = 42,850.89 × 16,904.70
4. Step 4: Simplify right side
   31,052.16x = 724,381,440.18
5. Step 5: Solve for x
   x = 724,381,440.18/31,052.16
6. Step 6: Final answer
   x = 23,327.89