Finding the Fourth Proportional to 11,085.39, 15,298.05 and 8,698.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,085.39 : 15,298.05 = 8,698.22 : x
2. Step 2: Convert to fraction form
   11,085.39/15,298.05 = 8,698.22/x
3. Step 3: Cross multiply
   11,085.39x = 15,298.05 × 8,698.22
4. Step 4: Simplify right side
   11,085.39x = 133,065,804.47
5. Step 5: Solve for x
   x = 133,065,804.47/11,085.39
6. Step 6: Final answer
   x = 12,003.71