Finding the Fourth Proportional to 14,355.72, 19,799.01 and 10,120.86

Step by Step Solution

1. Step 1: Write the proportion equation
   14,355.72 : 19,799.01 = 10,120.86 : x
2. Step 2: Convert to fraction form
   14,355.72/19,799.01 = 10,120.86/x
3. Step 3: Cross multiply
   14,355.72x = 19,799.01 × 10,120.86
4. Step 4: Simplify right side
   14,355.72x = 200,383,008.35
5. Step 5: Solve for x
   x = 200,383,008.35/14,355.72
6. Step 6: Final answer
   x = 13,958.41