Finding the Fourth Proportional to 9,926.64, 13,693.59 and 8,040.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,926.64 : 13,693.59 = 8,040.35 : x
2. Step 2: Convert to fraction form
   9,926.64/13,693.59 = 8,040.35/x
3. Step 3: Cross multiply
   9,926.64x = 13,693.59 × 8,040.35
4. Step 4: Simplify right side
   9,926.64x = 110,101,310.69
5. Step 5: Solve for x
   x = 110,101,310.69/9,926.64
6. Step 6: Final answer
   x = 11,091.50