Finding the Fourth Proportional to 269,060.48, 403,609.18 and 89,145.56

Step by Step Solution

1. Step 1: Write the proportion equation
   269,060.48 : 403,609.18 = 89,145.56 : x
2. Step 2: Convert to fraction form
   269,060.48/403,609.18 = 89,145.56/x
3. Step 3: Cross multiply
   269,060.48x = 403,609.18 × 89,145.56
4. Step 4: Simplify right side
   269,060.48x = 35,979,967,325.55
5. Step 5: Solve for x
   x = 35,979,967,325.55/269,060.48
6. Step 6: Final answer
   x = 133,724.46