Finding the Fourth Proportional to 12,992.85, 17,925.33 and 8,519.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,992.85 : 17,925.33 = 8,519.07 : x
2. Step 2: Convert to fraction form
   12,992.85/17,925.33 = 8,519.07/x
3. Step 3: Cross multiply
   12,992.85x = 17,925.33 × 8,519.07
4. Step 4: Simplify right side
   12,992.85x = 152,707,141.04
5. Step 5: Solve for x
   x = 152,707,141.04/12,992.85
6. Step 6: Final answer
   x = 11,753.17