Finding the Fourth Proportional to 12,379.21, 17,082.98 and 7,074.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,379.21 : 17,082.98 = 7,074.02 : x
2. Step 2: Convert to fraction form
   12,379.21/17,082.98 = 7,074.02/x
3. Step 3: Cross multiply
   12,379.21x = 17,082.98 × 7,074.02
4. Step 4: Simplify right side
   12,379.21x = 120,845,402.57
5. Step 5: Solve for x
   x = 120,845,402.57/12,379.21
6. Step 6: Final answer
   x = 9,761.97