Finding the Fourth Proportional to 5,179.69, 7,147.93 and 3,055.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,179.69 : 7,147.93 = 3,055.22 : x
2. Step 2: Convert to fraction form
   5,179.69/7,147.93 = 3,055.22/x
3. Step 3: Cross multiply
   5,179.69x = 7,147.93 × 3,055.22
4. Step 4: Simplify right side
   5,179.69x = 21,838,513.69
5. Step 5: Solve for x
   x = 21,838,513.69/5,179.69
6. Step 6: Final answer
   x = 4,216.18