Finding the Fourth Proportional to 10,390.62, 14,339.16 and 5,674.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,390.62 : 14,339.16 = 5,674.98 : x
2. Step 2: Convert to fraction form
   10,390.62/14,339.16 = 5,674.98/x
3. Step 3: Cross multiply
   10,390.62x = 14,339.16 × 5,674.98
4. Step 4: Simplify right side
   10,390.62x = 81,374,446.22
5. Step 5: Solve for x
   x = 81,374,446.22/10,390.62
6. Step 6: Final answer
   x = 7,831.53