Finding the Fourth Proportional to 89.39, 123.28 and 59.93

Step by Step Solution

1. Step 1: Write the proportion equation
   89.39 : 123.28 = 59.93 : x
2. Step 2: Convert to fraction form
   89.39/123.28 = 59.93/x
3. Step 3: Cross multiply
   89.39x = 123.28 × 59.93
4. Step 4: Simplify right side
   89.39x = 7,388.17
5. Step 5: Solve for x
   x = 7,388.17/89.39
6. Step 6: Final answer
   x = 82.65