Finding the Fourth Proportional to 14,256.05, 21,384.37 and 4,395.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,256.05 : 21,384.37 = 4,395.31 : x
2. Step 2: Convert to fraction form
   14,256.05/21,384.37 = 4,395.31/x
3. Step 3: Cross multiply
   14,256.05x = 21,384.37 × 4,395.31
4. Step 4: Simplify right side
   14,256.05x = 93,990,870.86
5. Step 5: Solve for x
   x = 93,990,870.86/14,256.05
6. Step 6: Final answer
   x = 6,593.05