Finding the Fourth Proportional to 7,139.67, 9,852.83 and 4,307.19

Step by Step Solution

1. Step 1: Write the proportion equation
   7,139.67 : 9,852.83 = 4,307.19 : x
2. Step 2: Convert to fraction form
   7,139.67/9,852.83 = 4,307.19/x
3. Step 3: Cross multiply
   7,139.67x = 9,852.83 × 4,307.19
4. Step 4: Simplify right side
   7,139.67x = 42,437,989.31
5. Step 5: Solve for x
   x = 42,437,989.31/7,139.67
6. Step 6: Final answer
   x = 5,943.97