Finding the Fourth Proportional to 5,776.59, 7,973.74 and 3,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,776.59 : 7,973.74 = 3,418.72 : x
2. Step 2: Convert to fraction form
   5,776.59/7,973.74 = 3,418.72/x
3. Step 3: Cross multiply
   5,776.59x = 7,973.74 × 3,418.72
4. Step 4: Simplify right side
   5,776.59x = 27,259,967.32
5. Step 5: Solve for x
   x = 27,259,967.32/5,776.59
6. Step 6: Final answer
   x = 4,719.05