Finding the Fourth Proportional to 161,196.48, 241,981.53 and 86,462.59

Step by Step Solution

1. Step 1: Write the proportion equation
   161,196.48 : 241,981.53 = 86,462.59 : x
2. Step 2: Convert to fraction form
   161,196.48/241,981.53 = 86,462.59/x
3. Step 3: Cross multiply
   161,196.48x = 241,981.53 × 86,462.59
4. Step 4: Simplify right side
   161,196.48x = 20,922,349,340.49
5. Step 5: Solve for x
   x = 20,922,349,340.49/161,196.48
6. Step 6: Final answer
   x = 129,794.08