Finding the Fourth Proportional to 7,085.54, 10,623.76 and 3,387.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,085.54 : 10,623.76 = 3,387.69 : x
2. Step 2: Convert to fraction form
   7,085.54/10,623.76 = 3,387.69/x
3. Step 3: Cross multiply
   7,085.54x = 10,623.76 × 3,387.69
4. Step 4: Simplify right side
   7,085.54x = 35,989,997.05
5. Step 5: Solve for x
   x = 35,989,997.05/7,085.54
6. Step 6: Final answer
   x = 5,079.36