Finding the Fourth Proportional to 89,783.15, 134,757.81 and 45,441.05

Step by Step Solution

1. Step 1: Write the proportion equation
   89,783.15 : 134,757.81 = 45,441.05 : x
2. Step 2: Convert to fraction form
   89,783.15/134,757.81 = 45,441.05/x
3. Step 3: Cross multiply
   89,783.15x = 134,757.81 × 45,441.05
4. Step 4: Simplify right side
   89,783.15x = 6,123,535,708.31
5. Step 5: Solve for x
   x = 6,123,535,708.31/89,783.15
6. Step 6: Final answer
   x = 68,203.62