Finding the Fourth Proportional to 8,335.91, 12,443.02 and 7,284.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,335.91 : 12,443.02 = 7,284.98 : x
2. Step 2: Convert to fraction form
   8,335.91/12,443.02 = 7,284.98/x
3. Step 3: Cross multiply
   8,335.91x = 12,443.02 × 7,284.98
4. Step 4: Simplify right side
   8,335.91x = 90,647,151.84
5. Step 5: Solve for x
   x = 90,647,151.84/8,335.91
6. Step 6: Final answer
   x = 10,874.30