Finding the Fourth Proportional to 16,921.42, 25,381.34 and 4,441.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,921.42 : 25,381.34 = 4,441.16 : x
2. Step 2: Convert to fraction form
   16,921.42/25,381.34 = 4,441.16/x
3. Step 3: Cross multiply
   16,921.42x = 25,381.34 × 4,441.16
4. Step 4: Simplify right side
   16,921.42x = 112,722,649.86
5. Step 5: Solve for x
   x = 112,722,649.86/16,921.42
6. Step 6: Final answer
   x = 6,661.54