Finding the Fourth Proportional to 49,835.10, 68,733.55 and 31,931.78

Step by Step Solution

1. Step 1: Write the proportion equation
   49,835.10 : 68,733.55 = 31,931.78 : x
2. Step 2: Convert to fraction form
   49,835.10/68,733.55 = 31,931.78/x
3. Step 3: Cross multiply
   49,835.10x = 68,733.55 × 31,931.78
4. Step 4: Simplify right side
   49,835.10x = 2,194,784,597.22
5. Step 5: Solve for x
   x = 2,194,784,597.22/49,835.10
6. Step 6: Final answer
   x = 44,040.94