Finding the Fourth Proportional to 80,879.07, 111,611.59 and 45,068.31

Step by Step Solution

1. Step 1: Write the proportion equation
   80,879.07 : 111,611.59 = 45,068.31 : x
2. Step 2: Convert to fraction form
   80,879.07/111,611.59 = 45,068.31/x
3. Step 3: Cross multiply
   80,879.07x = 111,611.59 × 45,068.31
4. Step 4: Simplify right side
   80,879.07x = 5,030,145,737.71
5. Step 5: Solve for x
   x = 5,030,145,737.71/80,879.07
6. Step 6: Final answer
   x = 62,193.42