Finding the Fourth Proportional to 126,190.72, 174,141.96 and 72,492.56

Step by Step Solution

1. Step 1: Write the proportion equation
   126,190.72 : 174,141.96 = 72,492.56 : x
2. Step 2: Convert to fraction form
   126,190.72/174,141.96 = 72,492.56/x
3. Step 3: Cross multiply
   126,190.72x = 174,141.96 × 72,492.56
4. Step 4: Simplify right side
   126,190.72x = 12,623,996,483.82
5. Step 5: Solve for x
   x = 12,623,996,483.82/126,190.72
6. Step 6: Final answer
   x = 100,039.02