Finding the Fourth Proportional to 10,069.15, 15,109.15 and 5,917.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,069.15 : 15,109.15 = 5,917.27 : x
2. Step 2: Convert to fraction form
   10,069.15/15,109.15 = 5,917.27/x
3. Step 3: Cross multiply
   10,069.15x = 15,109.15 × 5,917.27
4. Step 4: Simplify right side
   10,069.15x = 89,404,844.47
5. Step 5: Solve for x
   x = 89,404,844.47/10,069.15
6. Step 6: Final answer
   x = 8,879.09