Finding the Fourth Proportional to 89,396.12, 134,110.59 and 42,649

Step by Step Solution

1. Step 1: Write the proportion equation
   89,396.12 : 134,110.59 = 42,649 : x
2. Step 2: Convert to fraction form
   89,396.12/134,110.59 = 42,649/x
3. Step 3: Cross multiply
   89,396.12x = 134,110.59 × 42,649
4. Step 4: Simplify right side
   89,396.12x = 5,719,682,552.91
5. Step 5: Solve for x
   x = 5,719,682,552.91/89,396.12
6. Step 6: Final answer
   x = 63,981.33