Finding the Fourth Proportional to 83,729.52, 126,196.38 and 72,182.16

Step by Step Solution

1. Step 1: Write the proportion equation
   83,729.52 : 126,196.38 = 72,182.16 : x
2. Step 2: Convert to fraction form
   83,729.52/126,196.38 = 72,182.16/x
3. Step 3: Cross multiply
   83,729.52x = 126,196.38 × 72,182.16
4. Step 4: Simplify right side
   83,729.52x = 9,109,127,292.58
5. Step 5: Solve for x
   x = 9,109,127,292.58/83,729.52
6. Step 6: Final answer
   x = 108,792.30