Finding the Fourth Proportional to 12,091.92, 18,145.20 and 4,300.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,091.92 : 18,145.20 = 4,300.14 : x
2. Step 2: Convert to fraction form
   12,091.92/18,145.20 = 4,300.14/x
3. Step 3: Cross multiply
   12,091.92x = 18,145.20 × 4,300.14
4. Step 4: Simplify right side
   12,091.92x = 78,026,900.33
5. Step 5: Solve for x
   x = 78,026,900.33/12,091.92
6. Step 6: Final answer
   x = 6,452.81