Finding the Fourth Proportional to 80,818.27, 111,530.31 and 45,009.18

Step by Step Solution

1. Step 1: Write the proportion equation
   80,818.27 : 111,530.31 = 45,009.18 : x
2. Step 2: Convert to fraction form
   80,818.27/111,530.31 = 45,009.18/x
3. Step 3: Cross multiply
   80,818.27x = 111,530.31 × 45,009.18
4. Step 4: Simplify right side
   80,818.27x = 5,019,887,798.25
5. Step 5: Solve for x
   x = 5,019,887,798.25/80,818.27
6. Step 6: Final answer
   x = 62,113.28