Finding the Fourth Proportional to 49,012.84, 67,655.82 and 31,119.40

Step by Step Solution

1. Step 1: Write the proportion equation
   49,012.84 : 67,655.82 = 31,119.40 : x
2. Step 2: Convert to fraction form
   49,012.84/67,655.82 = 31,119.40/x
3. Step 3: Cross multiply
   49,012.84x = 67,655.82 × 31,119.40
4. Step 4: Simplify right side
   49,012.84x = 2,105,408,524.91
5. Step 5: Solve for x
   x = 2,105,408,524.91/49,012.84
6. Step 6: Final answer
   x = 42,956.26