Finding the Fourth Proportional to 5,632.34, 7,765.34 and 3,860.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,632.34 : 7,765.34 = 3,860.78 : x
2. Step 2: Convert to fraction form
   5,632.34/7,765.34 = 3,860.78/x
3. Step 3: Cross multiply
   5,632.34x = 7,765.34 × 3,860.78
4. Step 4: Simplify right side
   5,632.34x = 29,980,269.37
5. Step 5: Solve for x
   x = 29,980,269.37/5,632.34
6. Step 6: Final answer
   x = 5,322.88