Finding the Fourth Proportional to 5,111.82, 7,661.97 and 2,516.58

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.82 : 7,661.97 = 2,516.58 : x
2. Step 2: Convert to fraction form
   5,111.82/7,661.97 = 2,516.58/x
3. Step 3: Cross multiply
   5,111.82x = 7,661.97 × 2,516.58
4. Step 4: Simplify right side
   5,111.82x = 19,281,960.46
5. Step 5: Solve for x
   x = 19,281,960.46/5,111.82
6. Step 6: Final answer
   x = 3,772.03