Finding the Fourth Proportional to 12,992.76, 17,929.96 and 7,024.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,992.76 : 17,929.96 = 7,024.43 : x
2. Step 2: Convert to fraction form
   12,992.76/17,929.96 = 7,024.43/x
3. Step 3: Cross multiply
   12,992.76x = 17,929.96 × 7,024.43
4. Step 4: Simplify right side
   12,992.76x = 125,947,624.15
5. Step 5: Solve for x
   x = 125,947,624.15/12,992.76
6. Step 6: Final answer
   x = 9,693.68