Finding the Fourth Proportional to 42,148.78, 58,166.49 and 23,287.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,148.78 : 58,166.49 = 23,287.12 : x
2. Step 2: Convert to fraction form
   42,148.78/58,166.49 = 23,287.12/x
3. Step 3: Cross multiply
   42,148.78x = 58,166.49 × 23,287.12
4. Step 4: Simplify right side
   42,148.78x = 1,354,530,032.61
5. Step 5: Solve for x
   x = 1,354,530,032.61/42,148.78
6. Step 6: Final answer
   x = 32,136.87