Finding the Fourth Proportional to 111.16, 166.74 and 30.00

Step by Step Solution

1. Step 1: Write the proportion equation
   111.16 : 166.74 = 30.00 : x
2. Step 2: Convert to fraction form
   111.16/166.74 = 30.00/x
3. Step 3: Cross multiply
   111.16x = 166.74 × 30.00
4. Step 4: Simplify right side
   111.16x = 5,001.29
5. Step 5: Solve for x
   x = 5,001.29/111.16
6. Step 6: Final answer
   x = 44.99