Finding the Fourth Proportional to 151,231.78, 208,712.73 and 83,261.98

Step by Step Solution

1. Step 1: Write the proportion equation
   151,231.78 : 208,712.73 = 83,261.98 : x
2. Step 2: Convert to fraction form
   151,231.78/208,712.73 = 83,261.98/x
3. Step 3: Cross multiply
   151,231.78x = 208,712.73 × 83,261.98
4. Step 4: Simplify right side
   151,231.78x = 17,377,835,151.01
5. Step 5: Solve for x
   x = 17,377,835,151.01/151,231.78
6. Step 6: Final answer
   x = 114,908.62