Finding the Fourth Proportional to 23,120.86, 31,906.56 and 12,510.26

Step by Step Solution

1. Step 1: Write the proportion equation
   23,120.86 : 31,906.56 = 12,510.26 : x
2. Step 2: Convert to fraction form
   23,120.86/31,906.56 = 12,510.26/x
3. Step 3: Cross multiply
   23,120.86x = 31,906.56 × 12,510.26
4. Step 4: Simplify right side
   23,120.86x = 399,159,361.31
5. Step 5: Solve for x
   x = 399,159,361.31/23,120.86
6. Step 6: Final answer
   x = 17,264.04