Finding the Fourth Proportional to 118,783.45, 163,923.24 and 65,065.02

Step by Step Solution

1. Step 1: Write the proportion equation
   118,783.45 : 163,923.24 = 65,065.02 : x
2. Step 2: Convert to fraction form
   118,783.45/163,923.24 = 65,065.02/x
3. Step 3: Cross multiply
   118,783.45x = 163,923.24 × 65,065.02
4. Step 4: Simplify right side
   118,783.45x = 10,665,668,889.06
5. Step 5: Solve for x
   x = 10,665,668,889.06/118,783.45
6. Step 6: Final answer
   x = 89,790.87