Finding the Fourth Proportional to 61.35, 91.52 and 59.10

Step by Step Solution

1. Step 1: Write the proportion equation
   61.35 : 91.52 = 59.10 : x
2. Step 2: Convert to fraction form
   61.35/91.52 = 59.10/x
3. Step 3: Cross multiply
   61.35x = 91.52 × 59.10
4. Step 4: Simplify right side
   61.35x = 5,408.54
5. Step 5: Solve for x
   x = 5,408.54/61.35
6. Step 6: Final answer
   x = 88.16