Finding the Fourth Proportional to 31,296.88, 43,190.22 and 17,148.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,296.88 : 43,190.22 = 17,148.79 : x
2. Step 2: Convert to fraction form
   31,296.88/43,190.22 = 17,148.79/x
3. Step 3: Cross multiply
   31,296.88x = 43,190.22 × 17,148.79
4. Step 4: Simplify right side
   31,296.88x = 740,660,012.83
5. Step 5: Solve for x
   x = 740,660,012.83/31,296.88
6. Step 6: Final answer
   x = 23,665.62