Finding the Fourth Proportional to 108,050.15, 148,930.75 and 72,227.09

Step by Step Solution

1. Step 1: Write the proportion equation
   108,050.15 : 148,930.75 = 72,227.09 : x
2. Step 2: Convert to fraction form
   108,050.15/148,930.75 = 72,227.09/x
3. Step 3: Cross multiply
   108,050.15x = 148,930.75 × 72,227.09
4. Step 4: Simplify right side
   108,050.15x = 10,756,835,146.63
5. Step 5: Solve for x
   x = 10,756,835,146.63/108,050.15
6. Step 6: Final answer
   x = 99,554.09