Finding the Fourth Proportional to 16,619.78, 22,886.34 and 14,850.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,619.78 : 22,886.34 = 14,850.74 : x
2. Step 2: Convert to fraction form
   16,619.78/22,886.34 = 14,850.74/x
3. Step 3: Cross multiply
   16,619.78x = 22,886.34 × 14,850.74
4. Step 4: Simplify right side
   16,619.78x = 339,879,084.89
5. Step 5: Solve for x
   x = 339,879,084.89/16,619.78
6. Step 6: Final answer
   x = 20,450.28