Finding the Fourth Proportional to 118,801.72, 163,946.28 and 65,090.08

Step by Step Solution

1. Step 1: Write the proportion equation
   118,801.72 : 163,946.28 = 65,090.08 : x
2. Step 2: Convert to fraction form
   118,801.72/163,946.28 = 65,090.08/x
3. Step 3: Cross multiply
   118,801.72x = 163,946.28 × 65,090.08
4. Step 4: Simplify right side
   118,801.72x = 10,671,276,480.90
5. Step 5: Solve for x
   x = 10,671,276,480.90/118,801.72
6. Step 6: Final answer
   x = 89,824.26