Finding the Fourth Proportional to 89.47, 123.43 and 59.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89.47 : 123.43 = 59.98 : x
2. Step 2: Convert to fraction form
   89.47/123.43 = 59.98/x
3. Step 3: Cross multiply
   89.47x = 123.43 × 59.98
4. Step 4: Simplify right side
   89.47x = 7,403.33
5. Step 5: Solve for x
   x = 7,403.33/89.47
6. Step 6: Final answer
   x = 82.75