Finding the Fourth Proportional to 5,577.42, 8,355.06 and 3,818.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,577.42 : 8,355.06 = 3,818.10 : x
2. Step 2: Convert to fraction form
   5,577.42/8,355.06 = 3,818.10/x
3. Step 3: Cross multiply
   5,577.42x = 8,355.06 × 3,818.10
4. Step 4: Simplify right side
   5,577.42x = 31,900,454.59
5. Step 5: Solve for x
   x = 31,900,454.59/5,577.42
6. Step 6: Final answer
   x = 5,719.57