Finding the Fourth Proportional to 23,598.24, 32,565.15 and 12,987.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,598.24 : 32,565.15 = 12,987.78 : x
2. Step 2: Convert to fraction form
   23,598.24/32,565.15 = 12,987.78/x
3. Step 3: Cross multiply
   23,598.24x = 32,565.15 × 12,987.78
4. Step 4: Simplify right side
   23,598.24x = 422,949,003.87
5. Step 5: Solve for x
   x = 422,949,003.87/23,598.24
6. Step 6: Final answer
   x = 17,922.90