Finding the Fourth Proportional to 116,064.72, 160,169.04 and 65,763.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,064.72 : 160,169.04 = 65,763.72 : x
2. Step 2: Convert to fraction form
   116,064.72/160,169.04 = 65,763.72/x
3. Step 3: Cross multiply
   116,064.72x = 160,169.04 × 65,763.72
4. Step 4: Simplify right side
   116,064.72x = 10,533,311,899.23
5. Step 5: Solve for x
   x = 10,533,311,899.23/116,064.72
6. Step 6: Final answer
   x = 90,753.78