Finding the Fourth Proportional to 14,100.80, 19,436.52 and 11,111.68

Step by Step Solution

1. Step 1: Write the proportion equation
   14,100.80 : 19,436.52 = 11,111.68 : x
2. Step 2: Convert to fraction form
   14,100.80/19,436.52 = 11,111.68/x
3. Step 3: Cross multiply
   14,100.80x = 19,436.52 × 11,111.68
4. Step 4: Simplify right side
   14,100.80x = 215,972,390.55
5. Step 5: Solve for x
   x = 215,972,390.55/14,100.80
6. Step 6: Final answer
   x = 15,316.32