Finding the Fourth Proportional to 31,328.70, 43,229.61 and 17,900.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,328.70 : 43,229.61 = 17,900.83 : x
2. Step 2: Convert to fraction form
   31,328.70/43,229.61 = 17,900.83/x
3. Step 3: Cross multiply
   31,328.70x = 43,229.61 × 17,900.83
4. Step 4: Simplify right side
   31,328.70x = 773,845,710.45
5. Step 5: Solve for x
   x = 773,845,710.45/31,328.70
6. Step 6: Final answer
   x = 24,700.85