Finding the Fourth Proportional to 108,101.63, 149,137.29 and 72,234.83

Step by Step Solution

1. Step 1: Write the proportion equation
   108,101.63 : 149,137.29 = 72,234.83 : x
2. Step 2: Convert to fraction form
   108,101.63/149,137.29 = 72,234.83/x
3. Step 3: Cross multiply
   108,101.63x = 149,137.29 × 72,234.83
4. Step 4: Simplify right side
   108,101.63x = 10,772,906,044.12
5. Step 5: Solve for x
   x = 10,772,906,044.12/108,101.63
6. Step 6: Final answer
   x = 99,655.36