Finding the Fourth Proportional to 7,131.99, 9,839.73 and 4,298.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,131.99 : 9,839.73 = 4,298.31 : x
2. Step 2: Convert to fraction form
   7,131.99/9,839.73 = 4,298.31/x
3. Step 3: Cross multiply
   7,131.99x = 9,839.73 × 4,298.31
4. Step 4: Simplify right side
   7,131.99x = 42,294,209.86
5. Step 5: Solve for x
   x = 42,294,209.86/7,131.99
6. Step 6: Final answer
   x = 5,930.21