Finding the Fourth Proportional to 16,501.32, 22,774.76 and 12,515.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,501.32 : 22,774.76 = 12,515.72 : x
2. Step 2: Convert to fraction form
   16,501.32/22,774.76 = 12,515.72/x
3. Step 3: Cross multiply
   16,501.32x = 22,774.76 × 12,515.72
4. Step 4: Simplify right side
   16,501.32x = 285,042,519.23
5. Step 5: Solve for x
   x = 285,042,519.23/16,501.32
6. Step 6: Final answer
   x = 17,273.92