Finding the Fourth Proportional to 118,601.24, 163,673.52 and 64,885

Step by Step Solution

1. Step 1: Write the proportion equation
   118,601.24 : 163,673.52 = 64,885 : x
2. Step 2: Convert to fraction form
   118,601.24/163,673.52 = 64,885/x
3. Step 3: Cross multiply
   118,601.24x = 163,673.52 × 64,885
4. Step 4: Simplify right side
   118,601.24x = 10,619,956,345.20
5. Step 5: Solve for x
   x = 10,619,956,345.20/118,601.24
6. Step 6: Final answer
   x = 89,543.38