Finding the Fourth Proportional to 14,388.48, 19,855.62 and 8,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,388.48 : 19,855.62 = 8,100.72 : x
2. Step 2: Convert to fraction form
   14,388.48/19,855.62 = 8,100.72/x
3. Step 3: Cross multiply
   14,388.48x = 19,855.62 × 8,100.72
4. Step 4: Simplify right side
   14,388.48x = 160,844,818.05
5. Step 5: Solve for x
   x = 160,844,818.05/14,388.48
6. Step 6: Final answer
   x = 11,178.72