Finding the Fourth Proportional to 73,270.28, 109,734.50 and 53,499.80

Step by Step Solution

1. Step 1: Write the proportion equation
   73,270.28 : 109,734.50 = 53,499.80 : x
2. Step 2: Convert to fraction form
   73,270.28/109,734.50 = 53,499.80/x
3. Step 3: Cross multiply
   73,270.28x = 109,734.50 × 53,499.80
4. Step 4: Simplify right side
   73,270.28x = 5,870,773,803.10
5. Step 5: Solve for x
   x = 5,870,773,803.10/73,270.28
6. Step 6: Final answer
   x = 80,124.90