Finding the Fourth Proportional to 7,326.18, 10,111.02 and 4,139.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,326.18 : 10,111.02 = 4,139.61 : x
2. Step 2: Convert to fraction form
   7,326.18/10,111.02 = 4,139.61/x
3. Step 3: Cross multiply
   7,326.18x = 10,111.02 × 4,139.61
4. Step 4: Simplify right side
   7,326.18x = 41,855,679.50
5. Step 5: Solve for x
   x = 41,855,679.50/7,326.18
6. Step 6: Final answer
   x = 5,713.17