Finding the Fourth Proportional to 91,942.16, 137,834.22 and 31,962.78

Step by Step Solution

1. Step 1: Write the proportion equation
   91,942.16 : 137,834.22 = 31,962.78 : x
2. Step 2: Convert to fraction form
   91,942.16/137,834.22 = 31,962.78/x
3. Step 3: Cross multiply
   91,942.16x = 137,834.22 × 31,962.78
4. Step 4: Simplify right side
   91,942.16x = 4,405,564,850.33
5. Step 5: Solve for x
   x = 4,405,564,850.33/91,942.16
6. Step 6: Final answer
   x = 47,916.70