Finding the Fourth Proportional to 117,499.91, 162,150.82 and 65,112.75

Step by Step Solution

1. Step 1: Write the proportion equation
   117,499.91 : 162,150.82 = 65,112.75 : x
2. Step 2: Convert to fraction form
   117,499.91/162,150.82 = 65,112.75/x
3. Step 3: Cross multiply
   117,499.91x = 162,150.82 × 65,112.75
4. Step 4: Simplify right side
   117,499.91x = 10,558,085,804.96
5. Step 5: Solve for x
   x = 10,558,085,804.96/117,499.91
6. Step 6: Final answer
   x = 89,856.12