Finding the Fourth Proportional to 150,839.82, 208,152.23 and 90,443.79

Step by Step Solution

1. Step 1: Write the proportion equation
   150,839.82 : 208,152.23 = 90,443.79 : x
2. Step 2: Convert to fraction form
   150,839.82/208,152.23 = 90,443.79/x
3. Step 3: Cross multiply
   150,839.82x = 208,152.23 × 90,443.79
4. Step 4: Simplify right side
   150,839.82x = 18,826,076,125.93
5. Step 5: Solve for x
   x = 18,826,076,125.93/150,839.82
6. Step 6: Final answer
   x = 124,808.40