Finding the Fourth Proportional to 89,443.09, 134,170.85 and 30,258.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,443.09 : 134,170.85 = 30,258.76 : x
2. Step 2: Convert to fraction form
   89,443.09/134,170.85 = 30,258.76/x
3. Step 3: Cross multiply
   89,443.09x = 134,170.85 × 30,258.76
4. Step 4: Simplify right side
   89,443.09x = 4,059,842,727.00
5. Step 5: Solve for x
   x = 4,059,842,727.00/89,443.09
6. Step 6: Final answer
   x = 45,390.23