Finding the Fourth Proportional to 111,826.08, 154,190.70 and 89,147.34

Step by Step Solution

1. Step 1: Write the proportion equation
   111,826.08 : 154,190.70 = 89,147.34 : x
2. Step 2: Convert to fraction form
   111,826.08/154,190.70 = 89,147.34/x
3. Step 3: Cross multiply
   111,826.08x = 154,190.70 × 89,147.34
4. Step 4: Simplify right side
   111,826.08x = 13,745,690,757.74
5. Step 5: Solve for x
   x = 13,745,690,757.74/111,826.08
6. Step 6: Final answer
   x = 122,920.26