Finding the Fourth Proportional to 23,642.58, 32,626.56 and 12,887.25

Step by Step Solution

1. Step 1: Write the proportion equation
   23,642.58 : 32,626.56 = 12,887.25 : x
2. Step 2: Convert to fraction form
   23,642.58/32,626.56 = 12,887.25/x
3. Step 3: Cross multiply
   23,642.58x = 32,626.56 × 12,887.25
4. Step 4: Simplify right side
   23,642.58x = 420,466,684.71
5. Step 5: Solve for x
   x = 420,466,684.71/23,642.58
6. Step 6: Final answer
   x = 17,784.30