Finding the Fourth Proportional to 10,808.50, 16,191.77 and 7,099.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,808.50 : 16,191.77 = 7,099.48 : x
2. Step 2: Convert to fraction form
   10,808.50/16,191.77 = 7,099.48/x
3. Step 3: Cross multiply
   10,808.50x = 16,191.77 × 7,099.48
4. Step 4: Simplify right side
   10,808.50x = 114,953,066.32
5. Step 5: Solve for x
   x = 114,953,066.32/10,808.50
6. Step 6: Final answer
   x = 10,635.43