Finding the Fourth Proportional to 12,379, 17,082.71 and 7,073.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,379 : 17,082.71 = 7,073.47 : x
2. Step 2: Convert to fraction form
   12,379/17,082.71 = 7,073.47/x
3. Step 3: Cross multiply
   12,379x = 17,082.71 × 7,073.47
4. Step 4: Simplify right side
   12,379x = 120,834,036.70
5. Step 5: Solve for x
   x = 120,834,036.70/12,379
6. Step 6: Final answer
   x = 9,761.21