Finding the Fourth Proportional to 126,162.77, 174,119.22 and 72,428.18

Step by Step Solution

1. Step 1: Write the proportion equation
   126,162.77 : 174,119.22 = 72,428.18 : x
2. Step 2: Convert to fraction form
   126,162.77/174,119.22 = 72,428.18/x
3. Step 3: Cross multiply
   126,162.77x = 174,119.22 × 72,428.18
4. Step 4: Simplify right side
   126,162.77x = 12,611,137,337.02
5. Step 5: Solve for x
   x = 12,611,137,337.02/126,162.77
6. Step 6: Final answer
   x = 99,959.27