Finding the Fourth Proportional to 42,287.33, 58,433.50 and 40,237.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,287.33 : 58,433.50 = 40,237.63 : x
2. Step 2: Convert to fraction form
   42,287.33/58,433.50 = 40,237.63/x
3. Step 3: Cross multiply
   42,287.33x = 58,433.50 × 40,237.63
4. Step 4: Simplify right side
   42,287.33x = 2,351,225,456.82
5. Step 5: Solve for x
   x = 2,351,225,456.82/42,287.33
6. Step 6: Final answer
   x = 55,601.18