Finding the Fourth Proportional to 7,065.31, 10,600.56 and 2,904.20

Step by Step Solution

1. Step 1: Write the proportion equation
   7,065.31 : 10,600.56 = 2,904.20 : x
2. Step 2: Convert to fraction form
   7,065.31/10,600.56 = 2,904.20/x
3. Step 3: Cross multiply
   7,065.31x = 10,600.56 × 2,904.20
4. Step 4: Simplify right side
   7,065.31x = 30,786,172.85
5. Step 5: Solve for x
   x = 30,786,172.85/7,065.31
6. Step 6: Final answer
   x = 4,357.37