Finding the Fourth Proportional to 16,250.51, 22,404.02 and 12,904.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,250.51 : 22,404.02 = 12,904.40 : x
2. Step 2: Convert to fraction form
   16,250.51/22,404.02 = 12,904.40/x
3. Step 3: Cross multiply
   16,250.51x = 22,404.02 × 12,904.40
4. Step 4: Simplify right side
   16,250.51x = 289,110,435.69
5. Step 5: Solve for x
   x = 289,110,435.69/16,250.51
6. Step 6: Final answer
   x = 17,790.85