Finding the Fourth Proportional to 67.37, 100.83 and 61.22

Step by Step Solution

1. Step 1: Write the proportion equation
   67.37 : 100.83 = 61.22 : x
2. Step 2: Convert to fraction form
   67.37/100.83 = 61.22/x
3. Step 3: Cross multiply
   67.37x = 100.83 × 61.22
4. Step 4: Simplify right side
   67.37x = 6,172.81
5. Step 5: Solve for x
   x = 6,172.81/67.37
6. Step 6: Final answer
   x = 91.63