Finding the Fourth Proportional to 49,436.21, 68,167.30 and 31,502.81

Step by Step Solution

1. Step 1: Write the proportion equation
   49,436.21 : 68,167.30 = 31,502.81 : x
2. Step 2: Convert to fraction form
   49,436.21/68,167.30 = 31,502.81/x
3. Step 3: Cross multiply
   49,436.21x = 68,167.30 × 31,502.81
4. Step 4: Simplify right side
   49,436.21x = 2,147,461,500.11
5. Step 5: Solve for x
   x = 2,147,461,500.11/49,436.21
6. Step 6: Final answer
   x = 43,439.04