Finding the Fourth Proportional to 114,939, 158,615.82 and 64,638

Step by Step Solution

1. Step 1: Write the proportion equation
   114,939 : 158,615.82 = 64,638 : x
2. Step 2: Convert to fraction form
   114,939/158,615.82 = 64,638/x
3. Step 3: Cross multiply
   114,939x = 158,615.82 × 64,638
4. Step 4: Simplify right side
   114,939x = 10,252,609,373.16
5. Step 5: Solve for x
   x = 10,252,609,373.16/114,939
6. Step 6: Final answer
   x = 89,200.44