Finding the Fourth Proportional to 31,357.83, 43,273.22 and 17,210.55

Step by Step Solution

1. Step 1: Write the proportion equation
   31,357.83 : 43,273.22 = 17,210.55 : x
2. Step 2: Convert to fraction form
   31,357.83/43,273.22 = 17,210.55/x
3. Step 3: Cross multiply
   31,357.83x = 43,273.22 × 17,210.55
4. Step 4: Simplify right side
   31,357.83x = 744,755,830.42
5. Step 5: Solve for x
   x = 744,755,830.42/31,357.83
6. Step 6: Final answer
   x = 23,750.23