Finding the Fourth Proportional to 158,059.71, 218,128.41 and 90,087.41

Step by Step Solution

1. Step 1: Write the proportion equation
   158,059.71 : 218,128.41 = 90,087.41 : x
2. Step 2: Convert to fraction form
   158,059.71/218,128.41 = 90,087.41/x
3. Step 3: Cross multiply
   158,059.71x = 218,128.41 × 90,087.41
4. Step 4: Simplify right side
   158,059.71x = 19,650,624,049.64
5. Step 5: Solve for x
   x = 19,650,624,049.64/158,059.71
6. Step 6: Final answer
   x = 124,324.05