Finding the Fourth Proportional to 99,443.54, 137,162.22 and 65,441.18

Step by Step Solution

1. Step 1: Write the proportion equation
   99,443.54 : 137,162.22 = 65,441.18 : x
2. Step 2: Convert to fraction form
   99,443.54/137,162.22 = 65,441.18/x
3. Step 3: Cross multiply
   99,443.54x = 137,162.22 × 65,441.18
4. Step 4: Simplify right side
   99,443.54x = 8,976,057,528.22
5. Step 5: Solve for x
   x = 8,976,057,528.22/99,443.54
6. Step 6: Final answer
   x = 90,262.85