Finding the Fourth Proportional to 118,087.27, 162,959.97 and 64,372.12

Step by Step Solution

1. Step 1: Write the proportion equation
   118,087.27 : 162,959.97 = 64,372.12 : x
2. Step 2: Convert to fraction form
   118,087.27/162,959.97 = 64,372.12/x
3. Step 3: Cross multiply
   118,087.27x = 162,959.97 × 64,372.12
4. Step 4: Simplify right side
   118,087.27x = 10,490,078,744.04
5. Step 5: Solve for x
   x = 10,490,078,744.04/118,087.27
6. Step 6: Final answer
   x = 88,833.27