Finding the Fourth Proportional to 81,103.50, 111,921.62 and 45,294.03

Step by Step Solution

1. Step 1: Write the proportion equation
   81,103.50 : 111,921.62 = 45,294.03 : x
2. Step 2: Convert to fraction form
   81,103.50/111,921.62 = 45,294.03/x
3. Step 3: Cross multiply
   81,103.50x = 111,921.62 × 45,294.03
4. Step 4: Simplify right side
   81,103.50x = 5,069,380,987.46
5. Step 5: Solve for x
   x = 5,069,380,987.46/81,103.50
6. Step 6: Final answer
   x = 62,505.08