Finding the Fourth Proportional to 108,053.47, 148,935.31 and 72,230.41

Step by Step Solution

1. Step 1: Write the proportion equation
   108,053.47 : 148,935.31 = 72,230.41 : x
2. Step 2: Convert to fraction form
   108,053.47/148,935.31 = 72,230.41/x
3. Step 3: Cross multiply
   108,053.47x = 148,935.31 × 72,230.41
4. Step 4: Simplify right side
   108,053.47x = 10,757,658,504.78
5. Step 5: Solve for x
   x = 10,757,658,504.78/108,053.47
6. Step 6: Final answer
   x = 99,558.66