Finding the Fourth Proportional to 78.55, 117.83 and 24.45

Step by Step Solution

1. Step 1: Write the proportion equation
   78.55 : 117.83 = 24.45 : x
2. Step 2: Convert to fraction form
   78.55/117.83 = 24.45/x
3. Step 3: Cross multiply
   78.55x = 117.83 × 24.45
4. Step 4: Simplify right side
   78.55x = 2,880.82
5. Step 5: Solve for x
   x = 2,880.82/78.55
6. Step 6: Final answer
   x = 36.68