Finding the Fourth Proportional to 10,216.22, 15,334.55 and 7,085.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,216.22 : 15,334.55 = 7,085.36 : x
2. Step 2: Convert to fraction form
   10,216.22/15,334.55 = 7,085.36/x
3. Step 3: Cross multiply
   10,216.22x = 15,334.55 × 7,085.36
4. Step 4: Simplify right side
   10,216.22x = 108,650,695.09
5. Step 5: Solve for x
   x = 108,650,695.09/10,216.22
6. Step 6: Final answer
   x = 10,635.12