Finding the Fourth Proportional to 89,375.94, 133,859.75 and 42,661.62

Step by Step Solution

1. Step 1: Write the proportion equation
   89,375.94 : 133,859.75 = 42,661.62 : x
2. Step 2: Convert to fraction form
   89,375.94/133,859.75 = 42,661.62/x
3. Step 3: Cross multiply
   89,375.94x = 133,859.75 × 42,661.62
4. Step 4: Simplify right side
   89,375.94x = 5,710,673,574.49
5. Step 5: Solve for x
   x = 5,710,673,574.49/89,375.94
6. Step 6: Final answer
   x = 63,894.98