Finding the Fourth Proportional to 109.63, 164.53 and 60.89

Step by Step Solution

1. Step 1: Write the proportion equation
   109.63 : 164.53 = 60.89 : x
2. Step 2: Convert to fraction form
   109.63/164.53 = 60.89/x
3. Step 3: Cross multiply
   109.63x = 164.53 × 60.89
4. Step 4: Simplify right side
   109.63x = 10,018.23
5. Step 5: Solve for x
   x = 10,018.23/109.63
6. Step 6: Final answer
   x = 91.38