Finding the Fourth Proportional to 12,372.80, 17,074.49 and 7,339.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,372.80 : 17,074.49 = 7,339.46 : x
2. Step 2: Convert to fraction form
   12,372.80/17,074.49 = 7,339.46/x
3. Step 3: Cross multiply
   12,372.80x = 17,074.49 × 7,339.46
4. Step 4: Simplify right side
   12,372.80x = 125,317,414.31
5. Step 5: Solve for x
   x = 125,317,414.31/12,372.80
6. Step 6: Final answer
   x = 10,128.46