Finding the Fourth Proportional to 161,443.39, 242,162.65 and 72,634.18

Step by Step Solution

1. Step 1: Write the proportion equation
   161,443.39 : 242,162.65 = 72,634.18 : x
2. Step 2: Convert to fraction form
   161,443.39/242,162.65 = 72,634.18/x
3. Step 3: Cross multiply
   161,443.39x = 242,162.65 × 72,634.18
4. Step 4: Simplify right side
   161,443.39x = 17,589,285,509.38
5. Step 5: Solve for x
   x = 17,589,285,509.38/161,443.39
6. Step 6: Final answer
   x = 108,950.17