Finding the Fourth Proportional to 151,500.78, 209,448.99 and 113,709.42

Step by Step Solution

1. Step 1: Write the proportion equation
   151,500.78 : 209,448.99 = 113,709.42 : x
2. Step 2: Convert to fraction form
   151,500.78/209,448.99 = 113,709.42/x
3. Step 3: Cross multiply
   151,500.78x = 209,448.99 × 113,709.42
4. Step 4: Simplify right side
   151,500.78x = 23,816,323,172.49
5. Step 5: Solve for x
   x = 23,816,323,172.49/151,500.78
6. Step 6: Final answer
   x = 157,202.64