Finding the Fourth Proportional to 11,007.05, 15,189.30 and 5,971.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,007.05 : 15,189.30 = 5,971.17 : x
2. Step 2: Convert to fraction form
   11,007.05/15,189.30 = 5,971.17/x
3. Step 3: Cross multiply
   11,007.05x = 15,189.30 × 5,971.17
4. Step 4: Simplify right side
   11,007.05x = 90,697,892.48
5. Step 5: Solve for x
   x = 90,697,892.48/11,007.05
6. Step 6: Final answer
   x = 8,239.99