Finding the Fourth Proportional to 5,111.61, 7,665.13 and 2,339.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.61 : 7,665.13 = 2,339.18 : x
2. Step 2: Convert to fraction form
   5,111.61/7,665.13 = 2,339.18/x
3. Step 3: Cross multiply
   5,111.61x = 7,665.13 × 2,339.18
4. Step 4: Simplify right side
   5,111.61x = 17,930,112.14
5. Step 5: Solve for x
   x = 17,930,112.14/5,111.61
6. Step 6: Final answer
   x = 3,507.73