Finding the Fourth Proportional to 89,428.25, 134,134.18 and 30,257.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,428.25 : 134,134.18 = 30,257.15 : x
2. Step 2: Convert to fraction form
   89,428.25/134,134.18 = 30,257.15/x
3. Step 3: Cross multiply
   89,428.25x = 134,134.18 × 30,257.15
4. Step 4: Simplify right side
   89,428.25x = 4,058,517,258.07
5. Step 5: Solve for x
   x = 4,058,517,258.07/89,428.25
6. Step 6: Final answer
   x = 45,382.94