Finding the Fourth Proportional to 8,739, 12,061.83 and 5,337.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,739 : 12,061.83 = 5,337.17 : x
2. Step 2: Convert to fraction form
   8,739/12,061.83 = 5,337.17/x
3. Step 3: Cross multiply
   8,739x = 12,061.83 × 5,337.17
4. Step 4: Simplify right side
   8,739x = 64,375,976.91
5. Step 5: Solve for x
   x = 64,375,976.91/8,739
6. Step 6: Final answer
   x = 7,366.52