Finding the Fourth Proportional to 5,185.56, 7,155.04 and 2,946.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.56 : 7,155.04 = 2,946.72 : x
2. Step 2: Convert to fraction form
   5,185.56/7,155.04 = 2,946.72/x
3. Step 3: Cross multiply
   5,185.56x = 7,155.04 × 2,946.72
4. Step 4: Simplify right side
   5,185.56x = 21,083,899.47
5. Step 5: Solve for x
   x = 21,083,899.47/5,185.56
6. Step 6: Final answer
   x = 4,065.89