Finding the Fourth Proportional to 31,293.88, 43,186.56 and 17,147.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,293.88 : 43,186.56 = 17,147.63 : x
2. Step 2: Convert to fraction form
   31,293.88/43,186.56 = 17,147.63/x
3. Step 3: Cross multiply
   31,293.88x = 43,186.56 × 17,147.63
4. Step 4: Simplify right side
   31,293.88x = 740,547,151.85
5. Step 5: Solve for x
   x = 740,547,151.85/31,293.88
6. Step 6: Final answer
   x = 23,664.28