Finding the Fourth Proportional to 8,738.62, 12,061.31 and 5,336.79

Step by Step Solution

1. Step 1: Write the proportion equation
   8,738.62 : 12,061.31 = 5,336.79 : x
2. Step 2: Convert to fraction form
   8,738.62/12,061.31 = 5,336.79/x
3. Step 3: Cross multiply
   8,738.62x = 12,061.31 × 5,336.79
4. Step 4: Simplify right side
   8,738.62x = 64,368,606.68
5. Step 5: Solve for x
   x = 64,368,606.68/8,738.62
6. Step 6: Final answer
   x = 7,365.99