Finding the Fourth Proportional to 31,345.10, 43,256.29 and 17,198.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,345.10 : 43,256.29 = 17,198.05 : x
2. Step 2: Convert to fraction form
   31,345.10/43,256.29 = 17,198.05/x
3. Step 3: Cross multiply
   31,345.10x = 43,256.29 × 17,198.05
4. Step 4: Simplify right side
   31,345.10x = 743,923,621.95
5. Step 5: Solve for x
   x = 743,923,621.95/31,345.10
6. Step 6: Final answer
   x = 23,733.33