Finding the Fourth Proportional to 7,086.72, 10,623.52 and 3,623.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.72 : 10,623.52 = 3,623.12 : x
2. Step 2: Convert to fraction form
   7,086.72/10,623.52 = 3,623.12/x
3. Step 3: Cross multiply
   7,086.72x = 10,623.52 × 3,623.12
4. Step 4: Simplify right side
   7,086.72x = 38,490,287.78
5. Step 5: Solve for x
   x = 38,490,287.78/7,086.72
6. Step 6: Final answer
   x = 5,431.33