Finding the Fourth Proportional to 12,338.51, 18,510.48 and 5,761.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,338.51 : 18,510.48 = 5,761.10 : x
2. Step 2: Convert to fraction form
   12,338.51/18,510.48 = 5,761.10/x
3. Step 3: Cross multiply
   12,338.51x = 18,510.48 × 5,761.10
4. Step 4: Simplify right side
   12,338.51x = 106,640,633.78
5. Step 5: Solve for x
   x = 106,640,633.78/12,338.51
6. Step 6: Final answer
   x = 8,642.91