Finding the Fourth Proportional to 10,380.36, 14,325.48 and 5,664.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,380.36 : 14,325.48 = 5,664.72 : x
2. Step 2: Convert to fraction form
   10,380.36/14,325.48 = 5,664.72/x
3. Step 3: Cross multiply
   10,380.36x = 14,325.48 × 5,664.72
4. Step 4: Simplify right side
   10,380.36x = 81,149,833.07
5. Step 5: Solve for x
   x = 81,149,833.07/10,380.36
6. Step 6: Final answer
   x = 7,817.63