Finding the Fourth Proportional to 80,902.50, 111,648.07 and 45,100.09

Step by Step Solution

1. Step 1: Write the proportion equation
   80,902.50 : 111,648.07 = 45,100.09 : x
2. Step 2: Convert to fraction form
   80,902.50/111,648.07 = 45,100.09/x
3. Step 3: Cross multiply
   80,902.50x = 111,648.07 × 45,100.09
4. Step 4: Simplify right side
   80,902.50x = 5,035,338,005.33
5. Step 5: Solve for x
   x = 5,035,338,005.33/80,902.50
6. Step 6: Final answer
   x = 62,239.58