Finding the Fourth Proportional to 5,418.72, 7,477.83 and 3,060.87

Step by Step Solution

1. Step 1: Write the proportion equation
   5,418.72 : 7,477.83 = 3,060.87 : x
2. Step 2: Convert to fraction form
   5,418.72/7,477.83 = 3,060.87/x
3. Step 3: Cross multiply
   5,418.72x = 7,477.83 × 3,060.87
4. Step 4: Simplify right side
   5,418.72x = 22,888,665.51
5. Step 5: Solve for x
   x = 22,888,665.51/5,418.72
6. Step 6: Final answer
   x = 4,224.00