Finding the Fourth Proportional to 89,989.56, 134,900.18 and 40,042.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,989.56 : 134,900.18 = 40,042.52 : x
2. Step 2: Convert to fraction form
   89,989.56/134,900.18 = 40,042.52/x
3. Step 3: Cross multiply
   89,989.56x = 134,900.18 × 40,042.52
4. Step 4: Simplify right side
   89,989.56x = 5,401,743,155.65
5. Step 5: Solve for x
   x = 5,401,743,155.65/89,989.56
6. Step 6: Final answer
   x = 60,026.33