Finding the Fourth Proportional to 128,456.83, 192,435.88 and 94,661.50

Step by Step Solution

1. Step 1: Write the proportion equation
   128,456.83 : 192,435.88 = 94,661.50 : x
2. Step 2: Convert to fraction form
   128,456.83/192,435.88 = 94,661.50/x
3. Step 3: Cross multiply
   128,456.83x = 192,435.88 × 94,661.50
4. Step 4: Simplify right side
   128,456.83x = 18,216,269,054.62
5. Step 5: Solve for x
   x = 18,216,269,054.62/128,456.83
6. Step 6: Final answer
   x = 141,808.49