Finding the Fourth Proportional to 109.37, 150.91 and 62.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109.37 : 150.91 = 62.10 : x
2. Step 2: Convert to fraction form
   109.37/150.91 = 62.10/x
3. Step 3: Cross multiply
   109.37x = 150.91 × 62.10
4. Step 4: Simplify right side
   109.37x = 9,371.59
5. Step 5: Solve for x
   x = 9,371.59/109.37
6. Step 6: Final answer
   x = 85.69