Finding the Fourth Proportional to 7,660.89, 10,576.06 and 5,156.17

Step by Step Solution

1. Step 1: Write the proportion equation
   7,660.89 : 10,576.06 = 5,156.17 : x
2. Step 2: Convert to fraction form
   7,660.89/10,576.06 = 5,156.17/x
3. Step 3: Cross multiply
   7,660.89x = 10,576.06 × 5,156.17
4. Step 4: Simplify right side
   7,660.89x = 54,531,963.29
5. Step 5: Solve for x
   x = 54,531,963.29/7,660.89
6. Step 6: Final answer
   x = 7,118.23