Finding the Fourth Proportional to 49,098.42, 73,508.78 and 31,285.31

Step by Step Solution

1. Step 1: Write the proportion equation
   49,098.42 : 73,508.78 = 31,285.31 : x
2. Step 2: Convert to fraction form
   49,098.42/73,508.78 = 31,285.31/x
3. Step 3: Cross multiply
   49,098.42x = 73,508.78 × 31,285.31
4. Step 4: Simplify right side
   49,098.42x = 2,299,744,680.69
5. Step 5: Solve for x
   x = 2,299,744,680.69/49,098.42
6. Step 6: Final answer
   x = 46,839.48