Finding the Fourth Proportional to 5,377.50, 8,066.79 and 1,916.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,377.50 : 8,066.79 = 1,916.10 : x
2. Step 2: Convert to fraction form
   5,377.50/8,066.79 = 1,916.10/x
3. Step 3: Cross multiply
   5,377.50x = 8,066.79 × 1,916.10
4. Step 4: Simplify right side
   5,377.50x = 15,456,776.32
5. Step 5: Solve for x
   x = 15,456,776.32/5,377.50
6. Step 6: Final answer
   x = 2,874.34