Finding the Fourth Proportional to 113,809.55, 156,893.94 and 89,568.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,809.55 : 156,893.94 = 89,568.50 : x
2. Step 2: Convert to fraction form
   113,809.55/156,893.94 = 89,568.50/x
3. Step 3: Cross multiply
   113,809.55x = 156,893.94 × 89,568.50
4. Step 4: Simplify right side
   113,809.55x = 14,052,754,864.89
5. Step 5: Solve for x
   x = 14,052,754,864.89/113,809.55
6. Step 6: Final answer
   x = 123,476.06