Finding the Fourth Proportional to 80,870.37, 111,599.63 and 45,059.61

Step by Step Solution

1. Step 1: Write the proportion equation
   80,870.37 : 111,599.63 = 45,059.61 : x
2. Step 2: Convert to fraction form
   80,870.37/111,599.63 = 45,059.61/x
3. Step 3: Cross multiply
   80,870.37x = 111,599.63 × 45,059.61
4. Step 4: Simplify right side
   80,870.37x = 5,028,635,578.65
5. Step 5: Solve for x
   x = 5,028,635,578.65/80,870.37
6. Step 6: Final answer
   x = 62,181.43