Finding the Fourth Proportional to 31,294, 43,185.72 and 17,146.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,294 : 43,185.72 = 17,146.81 : x
2. Step 2: Convert to fraction form
   31,294/43,185.72 = 17,146.81/x
3. Step 3: Cross multiply
   31,294x = 43,185.72 × 17,146.81
4. Step 4: Simplify right side
   31,294x = 740,497,335.55
5. Step 5: Solve for x
   x = 740,497,335.55/31,294
6. Step 6: Final answer
   x = 23,662.60