Finding the Fourth Proportional to 23,642.27, 32,625.90 and 12,887.25

Step by Step Solution

1. Step 1: Write the proportion equation
   23,642.27 : 32,625.90 = 12,887.25 : x
2. Step 2: Convert to fraction form
   23,642.27/32,625.90 = 12,887.25/x
3. Step 3: Cross multiply
   23,642.27x = 32,625.90 × 12,887.25
4. Step 4: Simplify right side
   23,642.27x = 420,458,129.78
5. Step 5: Solve for x
   x = 420,458,129.78/23,642.27
6. Step 6: Final answer
   x = 17,784.17