Finding the Fourth Proportional to 59.31, 88.55 and 52.81

Step by Step Solution

1. Step 1: Write the proportion equation
   59.31 : 88.55 = 52.81 : x
2. Step 2: Convert to fraction form
   59.31/88.55 = 52.81/x
3. Step 3: Cross multiply
   59.31x = 88.55 × 52.81
4. Step 4: Simplify right side
   59.31x = 4,676.24
5. Step 5: Solve for x
   x = 4,676.24/59.31
6. Step 6: Final answer
   x = 78.84