Finding the Fourth Proportional to 118,786.20, 163,925.01 and 65,073.16

Step by Step Solution

1. Step 1: Write the proportion equation
   118,786.20 : 163,925.01 = 65,073.16 : x
2. Step 2: Convert to fraction form
   118,786.20/163,925.01 = 65,073.16/x
3. Step 3: Cross multiply
   118,786.20x = 163,925.01 × 65,073.16
4. Step 4: Simplify right side
   118,786.20x = 10,667,118,403.73
5. Step 5: Solve for x
   x = 10,667,118,403.73/118,786.20
6. Step 6: Final answer
   x = 89,800.99