Finding the Fourth Proportional to 111.39, 166.83 and 62.57

Step by Step Solution

1. Step 1: Write the proportion equation
   111.39 : 166.83 = 62.57 : x
2. Step 2: Convert to fraction form
   111.39/166.83 = 62.57/x
3. Step 3: Cross multiply
   111.39x = 166.83 × 62.57
4. Step 4: Simplify right side
   111.39x = 10,437.72
5. Step 5: Solve for x
   x = 10,437.72/111.39
6. Step 6: Final answer
   x = 93.70