Finding the Fourth Proportional to 111.47, 153.82 and 62.34

Step by Step Solution

1. Step 1: Write the proportion equation
   111.47 : 153.82 = 62.34 : x
2. Step 2: Convert to fraction form
   111.47/153.82 = 62.34/x
3. Step 3: Cross multiply
   111.47x = 153.82 × 62.34
4. Step 4: Simplify right side
   111.47x = 9,588.29
5. Step 5: Solve for x
   x = 9,588.29/111.47
6. Step 6: Final answer
   x = 86.02