Finding the Fourth Proportional to 49,731.30, 68,613.75 and 30,591

Step by Step Solution

1. Step 1: Write the proportion equation
   49,731.30 : 68,613.75 = 30,591 : x
2. Step 2: Convert to fraction form
   49,731.30/68,613.75 = 30,591/x
3. Step 3: Cross multiply
   49,731.30x = 68,613.75 × 30,591
4. Step 4: Simplify right side
   49,731.30x = 2,098,963,226.25
5. Step 5: Solve for x
   x = 2,098,963,226.25/49,731.30
6. Step 6: Final answer
   x = 42,206.08