Finding the Fourth Proportional to 61.16, 91.69 and 30.69

Step by Step Solution

1. Step 1: Write the proportion equation
   61.16 : 91.69 = 30.69 : x
2. Step 2: Convert to fraction form
   61.16/91.69 = 30.69/x
3. Step 3: Cross multiply
   61.16x = 91.69 × 30.69
4. Step 4: Simplify right side
   61.16x = 2,813.89
5. Step 5: Solve for x
   x = 2,813.89/61.16
6. Step 6: Final answer
   x = 46.01