Finding the Fourth Proportional to 89,749.28, 134,638.68 and 33,608.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,749.28 : 134,638.68 = 33,608.72 : x
2. Step 2: Convert to fraction form
   89,749.28/134,638.68 = 33,608.72/x
3. Step 3: Cross multiply
   89,749.28x = 134,638.68 × 33,608.72
4. Step 4: Simplify right side
   89,749.28x = 4,525,033,697.29
5. Step 5: Solve for x
   x = 4,525,033,697.29/89,749.28
6. Step 6: Final answer
   x = 50,418.61