Finding the Fourth Proportional to 88.47, 122.00 and 59.31

Step by Step Solution

1. Step 1: Write the proportion equation
   88.47 : 122.00 = 59.31 : x
2. Step 2: Convert to fraction form
   88.47/122.00 = 59.31/x
3. Step 3: Cross multiply
   88.47x = 122.00 × 59.31
4. Step 4: Simplify right side
   88.47x = 7,235.52
5. Step 5: Solve for x
   x = 7,235.52/88.47
6. Step 6: Final answer
   x = 81.79