Finding the Fourth Proportional to 3,448.95, 5,144.74 and 3,116.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,448.95 : 5,144.74 = 3,116.79 : x
2. Step 2: Convert to fraction form
   3,448.95/5,144.74 = 3,116.79/x
3. Step 3: Cross multiply
   3,448.95x = 5,144.74 × 3,116.79
4. Step 4: Simplify right side
   3,448.95x = 16,035,066.39
5. Step 5: Solve for x
   x = 16,035,066.39/3,448.95
6. Step 6: Final answer
   x = 4,649.26