Finding the Fourth Proportional to 12,377.96, 17,081.23 and 7,072.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,377.96 : 17,081.23 = 7,072.76 : x
2. Step 2: Convert to fraction form
   12,377.96/17,081.23 = 7,072.76/x
3. Step 3: Cross multiply
   12,377.96x = 17,081.23 × 7,072.76
4. Step 4: Simplify right side
   12,377.96x = 120,811,465.32
5. Step 5: Solve for x
   x = 120,811,465.32/12,377.96
6. Step 6: Final answer
   x = 9,760.21