Finding the Fourth Proportional to 7,185.57, 10,782.66 and 3,025.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,185.57 : 10,782.66 = 3,025.31 : x
2. Step 2: Convert to fraction form
   7,185.57/10,782.66 = 3,025.31/x
3. Step 3: Cross multiply
   7,185.57x = 10,782.66 × 3,025.31
4. Step 4: Simplify right side
   7,185.57x = 32,620,889.12
5. Step 5: Solve for x
   x = 32,620,889.12/7,185.57
6. Step 6: Final answer
   x = 4,539.78