Finding the Fourth Proportional to 12,914.87, 17,822.71 and 12,467.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,914.87 : 17,822.71 = 12,467.90 : x
2. Step 2: Convert to fraction form
   12,914.87/17,822.71 = 12,467.90/x
3. Step 3: Cross multiply
   12,914.87x = 17,822.71 × 12,467.90
4. Step 4: Simplify right side
   12,914.87x = 222,211,766.01
5. Step 5: Solve for x
   x = 222,211,766.01/12,914.87
6. Step 6: Final answer
   x = 17,205.88