Finding the Fourth Proportional to 5,179.56, 7,148.72 and 3,054.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,179.56 : 7,148.72 = 3,054.96 : x
2. Step 2: Convert to fraction form
   5,179.56/7,148.72 = 3,054.96/x
3. Step 3: Cross multiply
   5,179.56x = 7,148.72 × 3,054.96
4. Step 4: Simplify right side
   5,179.56x = 21,839,053.65
5. Step 5: Solve for x
   x = 21,839,053.65/5,179.56
6. Step 6: Final answer
   x = 4,216.39