Finding the Fourth Proportional to 11,019.80, 15,207.40 and 5,984.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,019.80 : 15,207.40 = 5,984.10 : x
2. Step 2: Convert to fraction form
   11,019.80/15,207.40 = 5,984.10/x
3. Step 3: Cross multiply
   11,019.80x = 15,207.40 × 5,984.10
4. Step 4: Simplify right side
   11,019.80x = 91,002,602.34
5. Step 5: Solve for x
   x = 91,002,602.34/11,019.80
6. Step 6: Final answer
   x = 8,258.10