Finding the Fourth Proportional to 9,422.86, 13,003.59 and 5,231.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,422.86 : 13,003.59 = 5,231.92 : x
2. Step 2: Convert to fraction form
   9,422.86/13,003.59 = 5,231.92/x
3. Step 3: Cross multiply
   9,422.86x = 13,003.59 × 5,231.92
4. Step 4: Simplify right side
   9,422.86x = 68,033,742.59
5. Step 5: Solve for x
   x = 68,033,742.59/9,422.86
6. Step 6: Final answer
   x = 7,220.07