Finding the Fourth Proportional to 42,574.52, 58,327.37 and 40,978.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,574.52 : 58,327.37 = 40,978.32 : x
2. Step 2: Convert to fraction form
   42,574.52/58,327.37 = 40,978.32/x
3. Step 3: Cross multiply
   42,574.52x = 58,327.37 × 40,978.32
4. Step 4: Simplify right side
   42,574.52x = 2,390,157,632.62
5. Step 5: Solve for x
   x = 2,390,157,632.62/42,574.52
6. Step 6: Final answer
   x = 56,140.57