Finding the Fourth Proportional to 8,931.47, 13,399.63 and 5,234.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,931.47 : 13,399.63 = 5,234.83 : x
2. Step 2: Convert to fraction form
   8,931.47/13,399.63 = 5,234.83/x
3. Step 3: Cross multiply
   8,931.47x = 13,399.63 × 5,234.83
4. Step 4: Simplify right side
   8,931.47x = 70,144,738.53
5. Step 5: Solve for x
   x = 70,144,738.53/8,931.47
6. Step 6: Final answer
   x = 7,853.67