Finding the Fourth Proportional to 5,662.77, 7,818.32 and 3,678.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,662.77 : 7,818.32 = 3,678.98 : x
2. Step 2: Convert to fraction form
   5,662.77/7,818.32 = 3,678.98/x
3. Step 3: Cross multiply
   5,662.77x = 7,818.32 × 3,678.98
4. Step 4: Simplify right side
   5,662.77x = 28,763,442.91
5. Step 5: Solve for x
   x = 28,763,442.91/5,662.77
6. Step 6: Final answer
   x = 5,079.39