Finding the Fourth Proportional to 108,053.16, 148,934.88 and 72,230.10

Step by Step Solution

1. Step 1: Write the proportion equation
   108,053.16 : 148,934.88 = 72,230.10 : x
2. Step 2: Convert to fraction form
   108,053.16/148,934.88 = 72,230.10/x
3. Step 3: Cross multiply
   108,053.16x = 148,934.88 × 72,230.10
4. Step 4: Simplify right side
   108,053.16x = 10,757,581,275.89
5. Step 5: Solve for x
   x = 10,757,581,275.89/108,053.16
6. Step 6: Final answer
   x = 99,558.23