Finding the Fourth Proportional to 23,136.15, 31,927.83 and 12,525.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,136.15 : 31,927.83 = 12,525.78 : x
2. Step 2: Convert to fraction form
   23,136.15/31,927.83 = 12,525.78/x
3. Step 3: Cross multiply
   23,136.15x = 31,927.83 × 12,525.78
4. Step 4: Simplify right side
   23,136.15x = 399,920,974.46
5. Step 5: Solve for x
   x = 399,920,974.46/23,136.15
6. Step 6: Final answer
   x = 17,285.55