Finding the Fourth Proportional to 90,096.72, 124,323.30 and 49,800.30

Step by Step Solution

1. Step 1: Write the proportion equation
   90,096.72 : 124,323.30 = 49,800.30 : x
2. Step 2: Convert to fraction form
   90,096.72/124,323.30 = 49,800.30/x
3. Step 3: Cross multiply
   90,096.72x = 124,323.30 × 49,800.30
4. Step 4: Simplify right side
   90,096.72x = 6,191,337,636.99
5. Step 5: Solve for x
   x = 6,191,337,636.99/90,096.72
6. Step 6: Final answer
   x = 68,718.79