Finding the Fourth Proportional to 10,796.12, 14,905.54 and 8,811.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,796.12 : 14,905.54 = 8,811.42 : x
2. Step 2: Convert to fraction form
   10,796.12/14,905.54 = 8,811.42/x
3. Step 3: Cross multiply
   10,796.12x = 14,905.54 × 8,811.42
4. Step 4: Simplify right side
   10,796.12x = 131,338,973.27
5. Step 5: Solve for x
   x = 131,338,973.27/10,796.12
6. Step 6: Final answer
   x = 12,165.39