Finding the Fourth Proportional to 42,012.48, 57,977.40 and 23,149.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,012.48 : 57,977.40 = 23,149.62 : x
2. Step 2: Convert to fraction form
   42,012.48/57,977.40 = 23,149.62/x
3. Step 3: Cross multiply
   42,012.48x = 57,977.40 × 23,149.62
4. Step 4: Simplify right side
   42,012.48x = 1,342,154,778.59
5. Step 5: Solve for x
   x = 1,342,154,778.59/42,012.48
6. Step 6: Final answer
   x = 31,946.57