Finding the Fourth Proportional to 16,488, 22,784.49 and 12,501.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,488 : 22,784.49 = 12,501.72 : x
2. Step 2: Convert to fraction form
   16,488/22,784.49 = 12,501.72/x
3. Step 3: Cross multiply
   16,488x = 22,784.49 × 12,501.72
4. Step 4: Simplify right side
   16,488x = 284,845,314.32
5. Step 5: Solve for x
   x = 284,845,314.32/16,488
6. Step 6: Final answer
   x = 17,275.92