Finding the Fourth Proportional to 110,499.80, 165,894.24 and 65,603.12

Step by Step Solution

1. Step 1: Write the proportion equation
   110,499.80 : 165,894.24 = 65,603.12 : x
2. Step 2: Convert to fraction form
   110,499.80/165,894.24 = 65,603.12/x
3. Step 3: Cross multiply
   110,499.80x = 165,894.24 × 65,603.12
4. Step 4: Simplify right side
   110,499.80x = 10,883,179,734.03
5. Step 5: Solve for x
   x = 10,883,179,734.03/110,499.80
6. Step 6: Final answer
   x = 98,490.49