Finding the Fourth Proportional to 80,845.31, 111,559.30 and 45,034.56

Step by Step Solution

1. Step 1: Write the proportion equation
   80,845.31 : 111,559.30 = 45,034.56 : x
2. Step 2: Convert to fraction form
   80,845.31/111,559.30 = 45,034.56/x
3. Step 3: Cross multiply
   80,845.31x = 111,559.30 × 45,034.56
4. Step 4: Simplify right side
   80,845.31x = 5,024,023,876.82
5. Step 5: Solve for x
   x = 5,024,023,876.82/80,845.31
6. Step 6: Final answer
   x = 62,143.66