Finding the Fourth Proportional to 14,066.68, 19,410.90 and 7,778.56

Step by Step Solution

1. Step 1: Write the proportion equation
   14,066.68 : 19,410.90 = 7,778.56 : x
2. Step 2: Convert to fraction form
   14,066.68/19,410.90 = 7,778.56/x
3. Step 3: Cross multiply
   14,066.68x = 19,410.90 × 7,778.56
4. Step 4: Simplify right side
   14,066.68x = 150,988,850.30
5. Step 5: Solve for x
   x = 150,988,850.30/14,066.68
6. Step 6: Final answer
   x = 10,733.79