Finding the Fourth Proportional to 131,243.56, 196,569.89 and 91,975.98

Step by Step Solution

1. Step 1: Write the proportion equation
   131,243.56 : 196,569.89 = 91,975.98 : x
2. Step 2: Convert to fraction form
   131,243.56/196,569.89 = 91,975.98/x
3. Step 3: Cross multiply
   131,243.56x = 196,569.89 × 91,975.98
4. Step 4: Simplify right side
   131,243.56x = 18,079,708,271.24
5. Step 5: Solve for x
   x = 18,079,708,271.24/131,243.56
6. Step 6: Final answer
   x = 137,756.92