Finding the Fourth Proportional to 42,327.42, 63,738.50 and 31,311.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,327.42 : 63,738.50 = 31,311.84 : x
2. Step 2: Convert to fraction form
   42,327.42/63,738.50 = 31,311.84/x
3. Step 3: Cross multiply
   42,327.42x = 63,738.50 × 31,311.84
4. Step 4: Simplify right side
   42,327.42x = 1,995,769,713.84
5. Step 5: Solve for x
   x = 1,995,769,713.84/42,327.42
6. Step 6: Final answer
   x = 47,150.75