Finding the Fourth Proportional to 111,750.87, 154,279.76 and 89,017.01

Step by Step Solution

1. Step 1: Write the proportion equation
   111,750.87 : 154,279.76 = 89,017.01 : x
2. Step 2: Convert to fraction form
   111,750.87/154,279.76 = 89,017.01/x
3. Step 3: Cross multiply
   111,750.87x = 154,279.76 × 89,017.01
4. Step 4: Simplify right side
   111,750.87x = 13,733,522,300.78
5. Step 5: Solve for x
   x = 13,733,522,300.78/111,750.87
6. Step 6: Final answer
   x = 122,894.09