Finding the Fourth Proportional to 117,742, 162,483.96 and 64,750

Step by Step Solution

1. Step 1: Write the proportion equation
   117,742 : 162,483.96 = 64,750 : x
2. Step 2: Convert to fraction form
   117,742/162,483.96 = 64,750/x
3. Step 3: Cross multiply
   117,742x = 162,483.96 × 64,750
4. Step 4: Simplify right side
   117,742x = 10,520,836,410
5. Step 5: Solve for x
   x = 10,520,836,410/117,742
6. Step 6: Final answer
   x = 89,355