Finding the Fourth Proportional to 108,063.04, 148,948.50 and 72,239.98

Step by Step Solution

1. Step 1: Write the proportion equation
   108,063.04 : 148,948.50 = 72,239.98 : x
2. Step 2: Convert to fraction form
   108,063.04/148,948.50 = 72,239.98/x
3. Step 3: Cross multiply
   108,063.04x = 148,948.50 × 72,239.98
4. Step 4: Simplify right side
   108,063.04x = 10,760,036,661.03
5. Step 5: Solve for x
   x = 10,760,036,661.03/108,063.04
6. Step 6: Final answer
   x = 99,571.85