Finding the Fourth Proportional to 245,505.78, 338,815.71 and 150,030.72

Step by Step Solution

1. Step 1: Write the proportion equation
   245,505.78 : 338,815.71 = 150,030.72 : x
2. Step 2: Convert to fraction form
   245,505.78/338,815.71 = 150,030.72/x
3. Step 3: Cross multiply
   245,505.78x = 338,815.71 × 150,030.72
4. Step 4: Simplify right side
   245,505.78x = 50,832,764,918.61
5. Step 5: Solve for x
   x = 50,832,764,918.61/245,505.78
6. Step 6: Final answer
   x = 207,053.23