Finding the Fourth Proportional to 89,429.25, 134,135.68 and 30,258.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,429.25 : 134,135.68 = 30,258.15 : x
2. Step 2: Convert to fraction form
   89,429.25/134,135.68 = 30,258.15/x
3. Step 3: Cross multiply
   89,429.25x = 134,135.68 × 30,258.15
4. Step 4: Simplify right side
   89,429.25x = 4,058,697,525.79
5. Step 5: Solve for x
   x = 4,058,697,525.79/89,429.25
6. Step 6: Final answer
   x = 45,384.45