Finding the Fourth Proportional to 8,216.62, 12,335.52 and 7,054.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216.62 : 12,335.52 = 7,054.10 : x
2. Step 2: Convert to fraction form
   8,216.62/12,335.52 = 7,054.10/x
3. Step 3: Cross multiply
   8,216.62x = 12,335.52 × 7,054.10
4. Step 4: Simplify right side
   8,216.62x = 87,015,929.95
5. Step 5: Solve for x
   x = 87,015,929.95/8,216.62
6. Step 6: Final answer
   x = 10,590.24