Finding the Fourth Proportional to 7,076.86, 10,619.39 and 2,916.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,076.86 : 10,619.39 = 2,916.09 : x
2. Step 2: Convert to fraction form
   7,076.86/10,619.39 = 2,916.09/x
3. Step 3: Cross multiply
   7,076.86x = 10,619.39 × 2,916.09
4. Step 4: Simplify right side
   7,076.86x = 30,967,096.99
5. Step 5: Solve for x
   x = 30,967,096.99/7,076.86
6. Step 6: Final answer
   x = 4,375.82