Finding the Fourth Proportional to 89,479, 134,219.31 and 27,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,479 : 134,219.31 = 27,149.50 : x
2. Step 2: Convert to fraction form
   89,479/134,219.31 = 27,149.50/x
3. Step 3: Cross multiply
   89,479x = 134,219.31 × 27,149.50
4. Step 4: Simplify right side
   89,479x = 3,643,987,156.85
5. Step 5: Solve for x
   x = 3,643,987,156.85/89,479
6. Step 6: Final answer
   x = 40,724.50