Finding the Fourth Proportional to 131,233.05, 196,666.58 and 99,185.82

Step by Step Solution

1. Step 1: Write the proportion equation
   131,233.05 : 196,666.58 = 99,185.82 : x
2. Step 2: Convert to fraction form
   131,233.05/196,666.58 = 99,185.82/x
3. Step 3: Cross multiply
   131,233.05x = 196,666.58 × 99,185.82
4. Step 4: Simplify right side
   131,233.05x = 19,506,535,020.56
5. Step 5: Solve for x
   x = 19,506,535,020.56/131,233.05
6. Step 6: Final answer
   x = 148,640.42