Finding the Fourth Proportional to 3,731.76, 5,565.96 and 3,666.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,731.76 : 5,565.96 = 3,666.15 : x
2. Step 2: Convert to fraction form
   3,731.76/5,565.96 = 3,666.15/x
3. Step 3: Cross multiply
   3,731.76x = 5,565.96 × 3,666.15
4. Step 4: Simplify right side
   3,731.76x = 20,405,644.25
5. Step 5: Solve for x
   x = 20,405,644.25/3,731.76
6. Step 6: Final answer
   x = 5,468.10