Finding the Fourth Proportional to 151,731.30, 227,078.55 and 133,068.90

Step by Step Solution

1. Step 1: Write the proportion equation
   151,731.30 : 227,078.55 = 133,068.90 : x
2. Step 2: Convert to fraction form
   151,731.30/227,078.55 = 133,068.90/x
3. Step 3: Cross multiply
   151,731.30x = 227,078.55 × 133,068.90
4. Step 4: Simplify right side
   151,731.30x = 30,217,092,862.10
5. Step 5: Solve for x
   x = 30,217,092,862.10/151,731.30
6. Step 6: Final answer
   x = 199,148.71