Finding the Fourth Proportional to 80,849.89, 111,572.91 and 45,039.99

Step by Step Solution

1. Step 1: Write the proportion equation
   80,849.89 : 111,572.91 = 45,039.99 : x
2. Step 2: Convert to fraction form
   80,849.89/111,572.91 = 45,039.99/x
3. Step 3: Cross multiply
   80,849.89x = 111,572.91 × 45,039.99
4. Step 4: Simplify right side
   80,849.89x = 5,025,242,750.67
5. Step 5: Solve for x
   x = 5,025,242,750.67/80,849.89
6. Step 6: Final answer
   x = 62,155.22