Finding the Fourth Proportional to 126,320.72, 174,335.49 and 72,608.00

Step by Step Solution

1. Step 1: Write the proportion equation
   126,320.72 : 174,335.49 = 72,608.00 : x
2. Step 2: Convert to fraction form
   126,320.72/174,335.49 = 72,608.00/x
3. Step 3: Cross multiply
   126,320.72x = 174,335.49 × 72,608.00
4. Step 4: Simplify right side
   126,320.72x = 12,658,150,386.24
5. Step 5: Solve for x
   x = 12,658,150,386.24/126,320.72
6. Step 6: Final answer
   x = 100,206.45