Finding the Fourth Proportional to 23,478.86, 32,400.69 and 12,868.94

Step by Step Solution

1. Step 1: Write the proportion equation
   23,478.86 : 32,400.69 = 12,868.94 : x
2. Step 2: Convert to fraction form
   23,478.86/32,400.69 = 12,868.94/x
3. Step 3: Cross multiply
   23,478.86x = 32,400.69 × 12,868.94
4. Step 4: Simplify right side
   23,478.86x = 416,962,535.57
5. Step 5: Solve for x
   x = 416,962,535.57/23,478.86
6. Step 6: Final answer
   x = 17,759.06