Finding the Fourth Proportional to 39,613.02, 54,665.31 and 23,688.42

Step by Step Solution

1. Step 1: Write the proportion equation
   39,613.02 : 54,665.31 = 23,688.42 : x
2. Step 2: Convert to fraction form
   39,613.02/54,665.31 = 23,688.42/x
3. Step 3: Cross multiply
   39,613.02x = 54,665.31 × 23,688.42
4. Step 4: Simplify right side
   39,613.02x = 1,294,934,822.71
5. Step 5: Solve for x
   x = 1,294,934,822.71/39,613.02
6. Step 6: Final answer
   x = 32,689.63