Finding the Fourth Proportional to 14,056.21, 19,396.69 and 7,768.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,056.21 : 19,396.69 = 7,768.72 : x
2. Step 2: Convert to fraction form
   14,056.21/19,396.69 = 7,768.72/x
3. Step 3: Cross multiply
   14,056.21x = 19,396.69 × 7,768.72
4. Step 4: Simplify right side
   14,056.21x = 150,687,453.54
5. Step 5: Solve for x
   x = 150,687,453.54/14,056.21
6. Step 6: Final answer
   x = 10,720.35