Finding the Fourth Proportional to 118,329.83, 163,301.81 and 64,619.85

Step by Step Solution

1. Step 1: Write the proportion equation
   118,329.83 : 163,301.81 = 64,619.85 : x
2. Step 2: Convert to fraction form
   118,329.83/163,301.81 = 64,619.85/x
3. Step 3: Cross multiply
   118,329.83x = 163,301.81 × 64,619.85
4. Step 4: Simplify right side
   118,329.83x = 10,552,538,143.83
5. Step 5: Solve for x
   x = 10,552,538,143.83/118,329.83
6. Step 6: Final answer
   x = 89,179.02