Finding the Fourth Proportional to 89,579.73, 134,398.77 and 42,836.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,579.73 : 134,398.77 = 42,836.25 : x
2. Step 2: Convert to fraction form
   89,579.73/134,398.77 = 42,836.25/x
3. Step 3: Cross multiply
   89,579.73x = 134,398.77 × 42,836.25
4. Step 4: Simplify right side
   89,579.73x = 5,757,139,311.41
5. Step 5: Solve for x
   x = 5,757,139,311.41/89,579.73
6. Step 6: Final answer
   x = 64,268.33