Finding the Fourth Proportional to 23,126.82, 31,915.06 and 12,516.53

Step by Step Solution

1. Step 1: Write the proportion equation
   23,126.82 : 31,915.06 = 12,516.53 : x
2. Step 2: Convert to fraction form
   23,126.82/31,915.06 = 12,516.53/x
3. Step 3: Cross multiply
   23,126.82x = 31,915.06 × 12,516.53
4. Step 4: Simplify right side
   23,126.82x = 399,465,685.48
5. Step 5: Solve for x
   x = 399,465,685.48/23,126.82
6. Step 6: Final answer
   x = 17,272.84