Finding the Fourth Proportional to 59.22, 88.83 and 42.99

Step by Step Solution

1. Step 1: Write the proportion equation
   59.22 : 88.83 = 42.99 : x
2. Step 2: Convert to fraction form
   59.22/88.83 = 42.99/x
3. Step 3: Cross multiply
   59.22x = 88.83 × 42.99
4. Step 4: Simplify right side
   59.22x = 3,818.80
5. Step 5: Solve for x
   x = 3,818.80/59.22
6. Step 6: Final answer
   x = 64.49