Finding the Fourth Proportional to 117,667, 162,380.72 and 64,675

Step by Step Solution

1. Step 1: Write the proportion equation
   117,667 : 162,380.72 = 64,675 : x
2. Step 2: Convert to fraction form
   117,667/162,380.72 = 64,675/x
3. Step 3: Cross multiply
   117,667x = 162,380.72 × 64,675
4. Step 4: Simplify right side
   117,667x = 10,501,973,066
5. Step 5: Solve for x
   x = 10,501,973,066/117,667
6. Step 6: Final answer
   x = 89,251.64