Finding the Fourth Proportional to 12,055.69, 18,091.46 and 4,264.21

Step by Step Solution

1. Step 1: Write the proportion equation
   12,055.69 : 18,091.46 = 4,264.21 : x
2. Step 2: Convert to fraction form
   12,055.69/18,091.46 = 4,264.21/x
3. Step 3: Cross multiply
   12,055.69x = 18,091.46 × 4,264.21
4. Step 4: Simplify right side
   12,055.69x = 77,145,784.65
5. Step 5: Solve for x
   x = 77,145,784.65/12,055.69
6. Step 6: Final answer
   x = 6,399.12