Finding the Fourth Proportional to 89,425, 133,933.38 and 42,710.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,425 : 133,933.38 = 42,710.68 : x
2. Step 2: Convert to fraction form
   89,425/133,933.38 = 42,710.68/x
3. Step 3: Cross multiply
   89,425x = 133,933.38 × 42,710.68
4. Step 4: Simplify right side
   89,425x = 5,720,385,734.50
5. Step 5: Solve for x
   x = 5,720,385,734.50/89,425
6. Step 6: Final answer
   x = 63,968.53