Finding the Fourth Proportional to 31,052.34, 42,852.33 and 16,905.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,052.34 : 42,852.33 = 16,905.18 : x
2. Step 2: Convert to fraction form
   31,052.34/42,852.33 = 16,905.18/x
3. Step 3: Cross multiply
   31,052.34x = 42,852.33 × 16,905.18
4. Step 4: Simplify right side
   31,052.34x = 724,426,352.07
5. Step 5: Solve for x
   x = 724,426,352.07/31,052.34
6. Step 6: Final answer
   x = 23,329.20