Finding the Fourth Proportional to 118,799.48, 163,942.80 and 65,084.42

Step by Step Solution

1. Step 1: Write the proportion equation
   118,799.48 : 163,942.80 = 65,084.42 : x
2. Step 2: Convert to fraction form
   118,799.48/163,942.80 = 65,084.42/x
3. Step 3: Cross multiply
   118,799.48x = 163,942.80 × 65,084.42
4. Step 4: Simplify right side
   118,799.48x = 10,670,122,051.18
5. Step 5: Solve for x
   x = 10,670,122,051.18/118,799.48
6. Step 6: Final answer
   x = 89,816.24