Finding the Fourth Proportional to 4,238.99, 5,851.64 and 3,973.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,238.99 : 5,851.64 = 3,973.31 : x
2. Step 2: Convert to fraction form
   4,238.99/5,851.64 = 3,973.31/x
3. Step 3: Cross multiply
   4,238.99x = 5,851.64 × 3,973.31
4. Step 4: Simplify right side
   4,238.99x = 23,250,359.86
5. Step 5: Solve for x
   x = 23,250,359.86/4,238.99
6. Step 6: Final answer
   x = 5,484.88