Finding the Fourth Proportional to 269,061.48, 403,610.68 and 89,146.56

Step by Step Solution

1. Step 1: Write the proportion equation
   269,061.48 : 403,610.68 = 89,146.56 : x
2. Step 2: Convert to fraction form
   269,061.48/403,610.68 = 89,146.56/x
3. Step 3: Cross multiply
   269,061.48x = 403,610.68 × 89,146.56
4. Step 4: Simplify right side
   269,061.48x = 35,980,503,701.26
5. Step 5: Solve for x
   x = 35,980,503,701.26/269,061.48
6. Step 6: Final answer
   x = 133,725.96