Finding the Fourth Proportional to 12,993.46, 17,929.88 and 7,329.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,993.46 : 17,929.88 = 7,329.60 : x
2. Step 2: Convert to fraction form
   12,993.46/17,929.88 = 7,329.60/x
3. Step 3: Cross multiply
   12,993.46x = 17,929.88 × 7,329.60
4. Step 4: Simplify right side
   12,993.46x = 131,418,848.45
5. Step 5: Solve for x
   x = 131,418,848.45/12,993.46
6. Step 6: Final answer
   x = 10,114.23