Finding the Fourth Proportional to 12,994.72, 17,932.28 and 7,329.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,994.72 : 17,932.28 = 7,329.61 : x
2. Step 2: Convert to fraction form
   12,994.72/17,932.28 = 7,329.61/x
3. Step 3: Cross multiply
   12,994.72x = 17,932.28 × 7,329.61
4. Step 4: Simplify right side
   12,994.72x = 131,436,618.81
5. Step 5: Solve for x
   x = 131,436,618.81/12,994.72
6. Step 6: Final answer
   x = 10,114.62