Finding the Fourth Proportional to 14,601.38, 20,149.88 and 7,887

Step by Step Solution

1. Step 1: Write the proportion equation
   14,601.38 : 20,149.88 = 7,887 : x
2. Step 2: Convert to fraction form
   14,601.38/20,149.88 = 7,887/x
3. Step 3: Cross multiply
   14,601.38x = 20,149.88 × 7,887
4. Step 4: Simplify right side
   14,601.38x = 158,922,103.56
5. Step 5: Solve for x
   x = 158,922,103.56/14,601.38
6. Step 6: Final answer
   x = 10,884.05