Finding the Fourth Proportional to 12,379.76, 17,082.96 and 7,074.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,379.76 : 17,082.96 = 7,074.56 : x
2. Step 2: Convert to fraction form
   12,379.76/17,082.96 = 7,074.56/x
3. Step 3: Cross multiply
   12,379.76x = 17,082.96 × 7,074.56
4. Step 4: Simplify right side
   12,379.76x = 120,854,425.50
5. Step 5: Solve for x
   x = 120,854,425.50/12,379.76
6. Step 6: Final answer
   x = 9,762.26