Finding the Fourth Proportional to 11,086.52, 16,607.88 and 8,316.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,086.52 : 16,607.88 = 8,316.32 : x
2. Step 2: Convert to fraction form
   11,086.52/16,607.88 = 8,316.32/x
3. Step 3: Cross multiply
   11,086.52x = 16,607.88 × 8,316.32
4. Step 4: Simplify right side
   11,086.52x = 138,116,361.56
5. Step 5: Solve for x
   x = 138,116,361.56/11,086.52
6. Step 6: Final answer
   x = 12,458.05