Finding the Fourth Proportional to 118,769.61, 163,902.09 and 65,055.53

Step by Step Solution

1. Step 1: Write the proportion equation
   118,769.61 : 163,902.09 = 65,055.53 : x
2. Step 2: Convert to fraction form
   118,769.61/163,902.09 = 65,055.53/x
3. Step 3: Cross multiply
   118,769.61x = 163,902.09 × 65,055.53
4. Step 4: Simplify right side
   118,769.61x = 10,662,736,513.55
5. Step 5: Solve for x
   x = 10,662,736,513.55/118,769.61
6. Step 6: Final answer
   x = 89,776.64