Finding the Fourth Proportional to 131,838.72, 196,582.08 and 117,185.28

Step by Step Solution

1. Step 1: Write the proportion equation
   131,838.72 : 196,582.08 = 117,185.28 : x
2. Step 2: Convert to fraction form
   131,838.72/196,582.08 = 117,185.28/x
3. Step 3: Cross multiply
   131,838.72x = 196,582.08 × 117,185.28
4. Step 4: Simplify right side
   131,838.72x = 23,036,526,087.78
5. Step 5: Solve for x
   x = 23,036,526,087.78/131,838.72
6. Step 6: Final answer
   x = 174,732.63