Finding the Fourth Proportional to 49,434.21, 68,164.55 and 31,500.81

Step by Step Solution

1. Step 1: Write the proportion equation
   49,434.21 : 68,164.55 = 31,500.81 : x
2. Step 2: Convert to fraction form
   49,434.21/68,164.55 = 31,500.81/x
3. Step 3: Cross multiply
   49,434.21x = 68,164.55 × 31,500.81
4. Step 4: Simplify right side
   49,434.21x = 2,147,238,380.78
5. Step 5: Solve for x
   x = 2,147,238,380.78/49,434.21
6. Step 6: Final answer
   x = 43,436.28