Finding the Fourth Proportional to 16,650.12, 22,978.50 and 9,937.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,650.12 : 22,978.50 = 9,937.80 : x
2. Step 2: Convert to fraction form
   16,650.12/22,978.50 = 9,937.80/x
3. Step 3: Cross multiply
   16,650.12x = 22,978.50 × 9,937.80
4. Step 4: Simplify right side
   16,650.12x = 228,355,737.30
5. Step 5: Solve for x
   x = 228,355,737.30/16,650.12
6. Step 6: Final answer
   x = 13,714.96