Finding the Fourth Proportional to 23,488.89, 32,414.70 and 12,878.70

Step by Step Solution

1. Step 1: Write the proportion equation
   23,488.89 : 32,414.70 = 12,878.70 : x
2. Step 2: Convert to fraction form
   23,488.89/32,414.70 = 12,878.70/x
3. Step 3: Cross multiply
   23,488.89x = 32,414.70 × 12,878.70
4. Step 4: Simplify right side
   23,488.89x = 417,459,196.89
5. Step 5: Solve for x
   x = 417,459,196.89/23,488.89
6. Step 6: Final answer
   x = 17,772.62