Finding the Fourth Proportional to 61.42, 91.69 and 59.29

Step by Step Solution

1. Step 1: Write the proportion equation
   61.42 : 91.69 = 59.29 : x
2. Step 2: Convert to fraction form
   61.42/91.69 = 59.29/x
3. Step 3: Cross multiply
   61.42x = 91.69 × 59.29
4. Step 4: Simplify right side
   61.42x = 5,435.84
5. Step 5: Solve for x
   x = 5,435.84/61.42
6. Step 6: Final answer
   x = 88.50