Finding the Fourth Proportional to 117,998.72, 162,839.36 and 67,012.52

Step by Step Solution

1. Step 1: Write the proportion equation
   117,998.72 : 162,839.36 = 67,012.52 : x
2. Step 2: Convert to fraction form
   117,998.72/162,839.36 = 67,012.52/x
3. Step 3: Cross multiply
   117,998.72x = 162,839.36 × 67,012.52
4. Step 4: Simplify right side
   117,998.72x = 10,912,274,719.53
5. Step 5: Solve for x
   x = 10,912,274,719.53/117,998.72
6. Step 6: Final answer
   x = 92,477.91