Finding the Fourth Proportional to 78.00, 116.99 and 23.89

Step by Step Solution

1. Step 1: Write the proportion equation
   78.00 : 116.99 = 23.89 : x
2. Step 2: Convert to fraction form
   78.00/116.99 = 23.89/x
3. Step 3: Cross multiply
   78.00x = 116.99 × 23.89
4. Step 4: Simplify right side
   78.00x = 2,794.77
5. Step 5: Solve for x
   x = 2,794.77/78.00
6. Step 6: Final answer
   x = 35.83