Finding the Fourth Proportional to 4,272.72, 5,887.60 and 3,151.88

Step by Step Solution

1. Step 1: Write the proportion equation
   4,272.72 : 5,887.60 = 3,151.88 : x
2. Step 2: Convert to fraction form
   4,272.72/5,887.60 = 3,151.88/x
3. Step 3: Cross multiply
   4,272.72x = 5,887.60 × 3,151.88
4. Step 4: Simplify right side
   4,272.72x = 18,557,008.69
5. Step 5: Solve for x
   x = 18,557,008.69/4,272.72
6. Step 6: Final answer
   x = 4,343.14