Finding the Fourth Proportional to 118,942.56, 164,118.96 and 71,214.12

Step by Step Solution

1. Step 1: Write the proportion equation
   118,942.56 : 164,118.96 = 71,214.12 : x
2. Step 2: Convert to fraction form
   118,942.56/164,118.96 = 71,214.12/x
3. Step 3: Cross multiply
   118,942.56x = 164,118.96 × 71,214.12
4. Step 4: Simplify right side
   118,942.56x = 11,687,587,311.72
5. Step 5: Solve for x
   x = 11,687,587,311.72/118,942.56
6. Step 6: Final answer
   x = 98,262.45