Finding the Fourth Proportional to 113,809.05, 156,893.25 and 89,568

Step by Step Solution

1. Step 1: Write the proportion equation
   113,809.05 : 156,893.25 = 89,568 : x
2. Step 2: Convert to fraction form
   113,809.05/156,893.25 = 89,568/x
3. Step 3: Cross multiply
   113,809.05x = 156,893.25 × 89,568
4. Step 4: Simplify right side
   113,809.05x = 14,052,614,616
5. Step 5: Solve for x
   x = 14,052,614,616/113,809.05
6. Step 6: Final answer
   x = 123,475.37