Finding the Fourth Proportional to 5,776.72, 8,668.72 and 3,316.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,776.72 : 8,668.72 = 3,316.34 : x
2. Step 2: Convert to fraction form
   5,776.72/8,668.72 = 3,316.34/x
3. Step 3: Cross multiply
   5,776.72x = 8,668.72 × 3,316.34
4. Step 4: Simplify right side
   5,776.72x = 28,748,422.88
5. Step 5: Solve for x
   x = 28,748,422.88/5,776.72
6. Step 6: Final answer
   x = 4,976.60