Finding the Fourth Proportional to 10,885.69, 15,022.26 and 5,917.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,885.69 : 15,022.26 = 5,917.69 : x
2. Step 2: Convert to fraction form
   10,885.69/15,022.26 = 5,917.69/x
3. Step 3: Cross multiply
   10,885.69x = 15,022.26 × 5,917.69
4. Step 4: Simplify right side
   10,885.69x = 88,897,040.22
5. Step 5: Solve for x
   x = 88,897,040.22/10,885.69
6. Step 6: Final answer
   x = 8,166.41