Finding the Fourth Proportional to 126,607.72, 174,735.20 and 72,895

Step by Step Solution

1. Step 1: Write the proportion equation
   126,607.72 : 174,735.20 = 72,895 : x
2. Step 2: Convert to fraction form
   126,607.72/174,735.20 = 72,895/x
3. Step 3: Cross multiply
   126,607.72x = 174,735.20 × 72,895
4. Step 4: Simplify right side
   126,607.72x = 12,737,322,404
5. Step 5: Solve for x
   x = 12,737,322,404/126,607.72
6. Step 6: Final answer
   x = 100,604.63