Finding the Fourth Proportional to 16,840.68, 23,229.50 and 12,051.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,840.68 : 23,229.50 = 12,051.15 : x
2. Step 2: Convert to fraction form
   16,840.68/23,229.50 = 12,051.15/x
3. Step 3: Cross multiply
   16,840.68x = 23,229.50 × 12,051.15
4. Step 4: Simplify right side
   16,840.68x = 279,942,128.67
5. Step 5: Solve for x
   x = 279,942,128.67/16,840.68
6. Step 6: Final answer
   x = 16,622.97