Finding the Fourth Proportional to 150,390.78, 207,472.52 and 96,665.76

Step by Step Solution

1. Step 1: Write the proportion equation
   150,390.78 : 207,472.52 = 96,665.76 : x
2. Step 2: Convert to fraction form
   150,390.78/207,472.52 = 96,665.76/x
3. Step 3: Cross multiply
   150,390.78x = 207,472.52 × 96,665.76
4. Step 4: Simplify right side
   150,390.78x = 20,055,488,341.59
5. Step 5: Solve for x
   x = 20,055,488,341.59/150,390.78
6. Step 6: Final answer
   x = 133,355.84