Finding the Fourth Proportional to 114.37, 157.72 and 89.47

Step by Step Solution

1. Step 1: Write the proportion equation
   114.37 : 157.72 = 89.47 : x
2. Step 2: Convert to fraction form
   114.37/157.72 = 89.47/x
3. Step 3: Cross multiply
   114.37x = 157.72 × 89.47
4. Step 4: Simplify right side
   114.37x = 14,111.21
5. Step 5: Solve for x
   x = 14,111.21/114.37
6. Step 6: Final answer
   x = 123.38