Finding the Fourth Proportional to 118,150, 163,047 and 65,158

Step by Step Solution

1. Step 1: Write the proportion equation
   118,150 : 163,047 = 65,158 : x
2. Step 2: Convert to fraction form
   118,150/163,047 = 65,158/x
3. Step 3: Cross multiply
   118,150x = 163,047 × 65,158
4. Step 4: Simplify right side
   118,150x = 10,623,816,426
5. Step 5: Solve for x
   x = 10,623,816,426/118,150
6. Step 6: Final answer
   x = 89,918.04