Finding the Fourth Proportional to 89,396.62, 134,111.34 and 42,649.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,396.62 : 134,111.34 = 42,649.50 : x
2. Step 2: Convert to fraction form
   89,396.62/134,111.34 = 42,649.50/x
3. Step 3: Cross multiply
   89,396.62x = 134,111.34 × 42,649.50
4. Step 4: Simplify right side
   89,396.62x = 5,719,781,595.33
5. Step 5: Solve for x
   x = 5,719,781,595.33/89,396.62
6. Step 6: Final answer
   x = 63,982.08