Finding the Fourth Proportional to 72,300.81, 108,450.81 and 48,234.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,300.81 : 108,450.81 = 48,234.18 : x
2. Step 2: Convert to fraction form
   72,300.81/108,450.81 = 48,234.18/x
3. Step 3: Cross multiply
   72,300.81x = 108,450.81 × 48,234.18
4. Step 4: Simplify right side
   72,300.81x = 5,231,035,890.69
5. Step 5: Solve for x
   x = 5,231,035,890.69/72,300.81
6. Step 6: Final answer
   x = 72,351.00