Finding the Fourth Proportional to 110.02, 164.72 and 61.15

Step by Step Solution

1. Step 1: Write the proportion equation
   110.02 : 164.72 = 61.15 : x
2. Step 2: Convert to fraction form
   110.02/164.72 = 61.15/x
3. Step 3: Cross multiply
   110.02x = 164.72 × 61.15
4. Step 4: Simplify right side
   110.02x = 10,072.63
5. Step 5: Solve for x
   x = 10,072.63/110.02
6. Step 6: Final answer
   x = 91.55