Finding the Fourth Proportional to 5,911.10, 8,864.55 and 2,618.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,911.10 : 8,864.55 = 2,618.30 : x
2. Step 2: Convert to fraction form
   5,911.10/8,864.55 = 2,618.30/x
3. Step 3: Cross multiply
   5,911.10x = 8,864.55 × 2,618.30
4. Step 4: Simplify right side
   5,911.10x = 23,210,051.27
5. Step 5: Solve for x
   x = 23,210,051.27/5,911.10
6. Step 6: Final answer
   x = 3,926.52