Finding the Fourth Proportional to 23,488.74, 32,414.45 and 12,878.55

Step by Step Solution

1. Step 1: Write the proportion equation
   23,488.74 : 32,414.45 = 12,878.55 : x
2. Step 2: Convert to fraction form
   23,488.74/32,414.45 = 12,878.55/x
3. Step 3: Cross multiply
   23,488.74x = 32,414.45 × 12,878.55
4. Step 4: Simplify right side
   23,488.74x = 417,451,050.65
5. Step 5: Solve for x
   x = 417,451,050.65/23,488.74
6. Step 6: Final answer
   x = 17,772.39