Finding the Fourth Proportional to 118,595.48, 163,635 and 70,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,595.48 : 163,635 = 70,839.50 : x
2. Step 2: Convert to fraction form
   118,595.48/163,635 = 70,839.50/x
3. Step 3: Cross multiply
   118,595.48x = 163,635 × 70,839.50
4. Step 4: Simplify right side
   118,595.48x = 11,591,821,582.50
5. Step 5: Solve for x
   x = 11,591,821,582.50/118,595.48
6. Step 6: Final answer
   x = 97,742.52