Finding the Fourth Proportional to 8,774.09, 12,110.69 and 5,417.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,774.09 : 12,110.69 = 5,417.45 : x
2. Step 2: Convert to fraction form
   8,774.09/12,110.69 = 5,417.45/x
3. Step 3: Cross multiply
   8,774.09x = 12,110.69 × 5,417.45
4. Step 4: Simplify right side
   8,774.09x = 65,609,057.54
5. Step 5: Solve for x
   x = 65,609,057.54/8,774.09
6. Step 6: Final answer
   x = 7,477.59