Finding the Fourth Proportional to 16,454.72, 22,705.98 and 10,078.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,454.72 : 22,705.98 = 10,078.40 : x
2. Step 2: Convert to fraction form
   16,454.72/22,705.98 = 10,078.40/x
3. Step 3: Cross multiply
   16,454.72x = 22,705.98 × 10,078.40
4. Step 4: Simplify right side
   16,454.72x = 228,839,835.30
5. Step 5: Solve for x
   x = 228,839,835.30/16,454.72
6. Step 6: Final answer
   x = 13,907.25