Finding the Fourth Proportional to 89,912.58, 134,895.87 and 42,563.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,912.58 : 134,895.87 = 42,563.76 : x
2. Step 2: Convert to fraction form
   89,912.58/134,895.87 = 42,563.76/x
3. Step 3: Cross multiply
   89,912.58x = 134,895.87 × 42,563.76
4. Step 4: Simplify right side
   89,912.58x = 5,741,675,435.67
5. Step 5: Solve for x
   x = 5,741,675,435.67/89,912.58
6. Step 6: Final answer
   x = 63,858.42