Finding the Fourth Proportional to 11,019.90, 15,207.65 and 5,984.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,019.90 : 15,207.65 = 5,984.12 : x
2. Step 2: Convert to fraction form
   11,019.90/15,207.65 = 5,984.12/x
3. Step 3: Cross multiply
   11,019.90x = 15,207.65 × 5,984.12
4. Step 4: Simplify right side
   11,019.90x = 91,004,402.52
5. Step 5: Solve for x
   x = 91,004,402.52/11,019.90
6. Step 6: Final answer
   x = 8,258.19