Finding the Fourth Proportional to 13,105.64, 18,087.23 and 8,068.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,105.64 : 18,087.23 = 8,068.86 : x
2. Step 2: Convert to fraction form
   13,105.64/18,087.23 = 8,068.86/x
3. Step 3: Cross multiply
   13,105.64x = 18,087.23 × 8,068.86
4. Step 4: Simplify right side
   13,105.64x = 145,943,346.83
5. Step 5: Solve for x
   x = 145,943,346.83/13,105.64
6. Step 6: Final answer
   x = 11,135.92