Finding the Fourth Proportional to 14,105.16, 21,157.77 and 3,575.18

Step by Step Solution

1. Step 1: Write the proportion equation
   14,105.16 : 21,157.77 = 3,575.18 : x
2. Step 2: Convert to fraction form
   14,105.16/21,157.77 = 3,575.18/x
3. Step 3: Cross multiply
   14,105.16x = 21,157.77 × 3,575.18
4. Step 4: Simplify right side
   14,105.16x = 75,642,827.86
5. Step 5: Solve for x
   x = 75,642,827.86/14,105.16
6. Step 6: Final answer
   x = 5,362.78