Finding the Fourth Proportional to 23,540.32, 32,485.62 and 12,929.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,540.32 : 32,485.62 = 12,929.86 : x
2. Step 2: Convert to fraction form
   23,540.32/32,485.62 = 12,929.86/x
3. Step 3: Cross multiply
   23,540.32x = 32,485.62 × 12,929.86
4. Step 4: Simplify right side
   23,540.32x = 420,034,518.61
5. Step 5: Solve for x
   x = 420,034,518.61/23,540.32
6. Step 6: Final answer
   x = 17,843.19