Finding the Fourth Proportional to 82,611.57, 123,917.13 and 23,447.31

Step by Step Solution

1. Step 1: Write the proportion equation
   82,611.57 : 123,917.13 = 23,447.31 : x
2. Step 2: Convert to fraction form
   82,611.57/123,917.13 = 23,447.31/x
3. Step 3: Cross multiply
   82,611.57x = 123,917.13 × 23,447.31
4. Step 4: Simplify right side
   82,611.57x = 2,905,523,361.42
5. Step 5: Solve for x
   x = 2,905,523,361.42/82,611.57
6. Step 6: Final answer
   x = 35,170.90