Finding the Fourth Proportional to 9,986.02, 13,780.41 and 5,794.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.02 : 13,780.41 = 5,794.06 : x
2. Step 2: Convert to fraction form
   9,986.02/13,780.41 = 5,794.06/x
3. Step 3: Cross multiply
   9,986.02x = 13,780.41 × 5,794.06
4. Step 4: Simplify right side
   9,986.02x = 79,844,522.36
5. Step 5: Solve for x
   x = 79,844,522.36/9,986.02
6. Step 6: Final answer
   x = 7,995.63