Finding the Fourth Proportional to 117,923.50, 162,732 and 64,209.43

Step by Step Solution

1. Step 1: Write the proportion equation
   117,923.50 : 162,732 = 64,209.43 : x
2. Step 2: Convert to fraction form
   117,923.50/162,732 = 64,209.43/x
3. Step 3: Cross multiply
   117,923.50x = 162,732 × 64,209.43
4. Step 4: Simplify right side
   117,923.50x = 10,448,928,962.76
5. Step 5: Solve for x
   x = 10,448,928,962.76/117,923.50
6. Step 6: Final answer
   x = 88,607.69