Finding the Fourth Proportional to 80,985.41, 111,758.55 and 45,174.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,985.41 : 111,758.55 = 45,174.50 : x
2. Step 2: Convert to fraction form
   80,985.41/111,758.55 = 45,174.50/x
3. Step 3: Cross multiply
   80,985.41x = 111,758.55 × 45,174.50
4. Step 4: Simplify right side
   80,985.41x = 5,048,636,058.18
5. Step 5: Solve for x
   x = 5,048,636,058.18/80,985.41
6. Step 6: Final answer
   x = 62,340.07