Finding the Fourth Proportional to 31,314.36, 43,213.86 and 17,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,314.36 : 43,213.86 = 17,167.50 : x
2. Step 2: Convert to fraction form
   31,314.36/43,213.86 = 17,167.50/x
3. Step 3: Cross multiply
   31,314.36x = 43,213.86 × 17,167.50
4. Step 4: Simplify right side
   31,314.36x = 741,873,941.55
5. Step 5: Solve for x
   x = 741,873,941.55/31,314.36
6. Step 6: Final answer
   x = 23,691.17