Finding the Fourth Proportional to 113,933.16, 170,035.02 and 111,279.60

Step by Step Solution

1. Step 1: Write the proportion equation
   113,933.16 : 170,035.02 = 111,279.60 : x
2. Step 2: Convert to fraction form
   113,933.16/170,035.02 = 111,279.60/x
3. Step 3: Cross multiply
   113,933.16x = 170,035.02 × 111,279.60
4. Step 4: Simplify right side
   113,933.16x = 18,921,429,011.59
5. Step 5: Solve for x
   x = 18,921,429,011.59/113,933.16
6. Step 6: Final answer
   x = 166,074.82