Finding the Fourth Proportional to 89,756.78, 134,647.47 and 39,835.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,756.78 : 134,647.47 = 39,835.76 : x
2. Step 2: Convert to fraction form
   89,756.78/134,647.47 = 39,835.76/x
3. Step 3: Cross multiply
   89,756.78x = 134,647.47 × 39,835.76
4. Step 4: Simplify right side
   89,756.78x = 5,363,783,626.29
5. Step 5: Solve for x
   x = 5,363,783,626.29/89,756.78
6. Step 6: Final answer
   x = 59,759.09