Finding the Fourth Proportional to 89,443.73, 134,178.35 and 30,296.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,443.73 : 134,178.35 = 30,296.31 : x
2. Step 2: Convert to fraction form
   89,443.73/134,178.35 = 30,296.31/x
3. Step 3: Cross multiply
   89,443.73x = 134,178.35 × 30,296.31
4. Step 4: Simplify right side
   89,443.73x = 4,065,108,735.41
5. Step 5: Solve for x
   x = 4,065,108,735.41/89,443.73
6. Step 6: Final answer
   x = 45,448.79