Finding the Fourth Proportional to 118,825.60, 163,979.58 and 65,109.52

Step by Step Solution

1. Step 1: Write the proportion equation
   118,825.60 : 163,979.58 = 65,109.52 : x
2. Step 2: Convert to fraction form
   118,825.60/163,979.58 = 65,109.52/x
3. Step 3: Cross multiply
   118,825.60x = 163,979.58 × 65,109.52
4. Step 4: Simplify right side
   118,825.60x = 10,676,631,743.60
5. Step 5: Solve for x
   x = 10,676,631,743.60/118,825.60
6. Step 6: Final answer
   x = 89,851.28