Finding the Fourth Proportional to 131,983.43, 181,462.71 and 117,505.49

Step by Step Solution

1. Step 1: Write the proportion equation
   131,983.43 : 181,462.71 = 117,505.49 : x
2. Step 2: Convert to fraction form
   131,983.43/181,462.71 = 117,505.49/x
3. Step 3: Cross multiply
   131,983.43x = 181,462.71 × 117,505.49
4. Step 4: Simplify right side
   131,983.43x = 21,322,864,067.75
5. Step 5: Solve for x
   x = 21,322,864,067.75/131,983.43
6. Step 6: Final answer
   x = 161,557.13