Finding the Fourth Proportional to 5,774.69, 8,667.88 and 3,900.39

Step by Step Solution

1. Step 1: Write the proportion equation
   5,774.69 : 8,667.88 = 3,900.39 : x
2. Step 2: Convert to fraction form
   5,774.69/8,667.88 = 3,900.39/x
3. Step 3: Cross multiply
   5,774.69x = 8,667.88 × 3,900.39
4. Step 4: Simplify right side
   5,774.69x = 33,808,070.22
5. Step 5: Solve for x
   x = 33,808,070.22/5,774.69
6. Step 6: Final answer
   x = 5,854.52