Finding the Fourth Proportional to 42,359.52, 58,723.91 and 40,112.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,359.52 : 58,723.91 = 40,112.52 : x
2. Step 2: Convert to fraction form
   42,359.52/58,723.91 = 40,112.52/x
3. Step 3: Cross multiply
   42,359.52x = 58,723.91 × 40,112.52
4. Step 4: Simplify right side
   42,359.52x = 2,355,563,813.79
5. Step 5: Solve for x
   x = 2,355,563,813.79/42,359.52
6. Step 6: Final answer
   x = 55,608.84