Finding the Fourth Proportional to 5,929.31, 8,896.55 and 2,811.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,929.31 : 8,896.55 = 2,811.50 : x
2. Step 2: Convert to fraction form
   5,929.31/8,896.55 = 2,811.50/x
3. Step 3: Cross multiply
   5,929.31x = 8,896.55 × 2,811.50
4. Step 4: Simplify right side
   5,929.31x = 25,012,650.33
5. Step 5: Solve for x
   x = 25,012,650.33/5,929.31
6. Step 6: Final answer
   x = 4,218.48