Finding the Fourth Proportional to 117,712.72, 162,387.72 and 67,383.12

Step by Step Solution

1. Step 1: Write the proportion equation
   117,712.72 : 162,387.72 = 67,383.12 : x
2. Step 2: Convert to fraction form
   117,712.72/162,387.72 = 67,383.12/x
3. Step 3: Cross multiply
   117,712.72x = 162,387.72 × 67,383.12
4. Step 4: Simplify right side
   117,712.72x = 10,942,191,223.29
5. Step 5: Solve for x
   x = 10,942,191,223.29/117,712.72
6. Step 6: Final answer
   x = 92,956.74