Finding the Fourth Proportional to 23,613.32, 35,411.47 and 7,815.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,613.32 : 35,411.47 = 7,815.42 : x
2. Step 2: Convert to fraction form
   23,613.32/35,411.47 = 7,815.42/x
3. Step 3: Cross multiply
   23,613.32x = 35,411.47 × 7,815.42
4. Step 4: Simplify right side
   23,613.32x = 276,755,491.33
5. Step 5: Solve for x
   x = 276,755,491.33/23,613.32
6. Step 6: Final answer
   x = 11,720.31