Finding the Fourth Proportional to 118,792.72, 163,933.98 and 65,079.66

Step by Step Solution

1. Step 1: Write the proportion equation
   118,792.72 : 163,933.98 = 65,079.66 : x
2. Step 2: Convert to fraction form
   118,792.72/163,933.98 = 65,079.66/x
3. Step 3: Cross multiply
   118,792.72x = 163,933.98 × 65,079.66
4. Step 4: Simplify right side
   118,792.72x = 10,668,767,680.85
5. Step 5: Solve for x
   x = 10,668,767,680.85/118,792.72
6. Step 6: Final answer
   x = 89,809.95