Finding the Fourth Proportional to 118,782.45, 163,921.86 and 65,064.02

Step by Step Solution

1. Step 1: Write the proportion equation
   118,782.45 : 163,921.86 = 65,064.02 : x
2. Step 2: Convert to fraction form
   118,782.45/163,921.86 = 65,064.02/x
3. Step 3: Cross multiply
   118,782.45x = 163,921.86 × 65,064.02
4. Step 4: Simplify right side
   118,782.45x = 10,665,414,357.87
5. Step 5: Solve for x
   x = 10,665,414,357.87/118,782.45
6. Step 6: Final answer
   x = 89,789.48