Finding the Fourth Proportional to 31,255, 43,131.86 and 17,107.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,255 : 43,131.86 = 17,107.88 : x
2. Step 2: Convert to fraction form
   31,255/43,131.86 = 17,107.88/x
3. Step 3: Cross multiply
   31,255x = 43,131.86 × 17,107.88
4. Step 4: Simplify right side
   31,255x = 737,894,685.06
5. Step 5: Solve for x
   x = 737,894,685.06/31,255
6. Step 6: Final answer
   x = 23,608.85