Finding the Fourth Proportional to 9,105.09, 12,564.89 and 5,126.19

Step by Step Solution

1. Step 1: Write the proportion equation
   9,105.09 : 12,564.89 = 5,126.19 : x
2. Step 2: Convert to fraction form
   9,105.09/12,564.89 = 5,126.19/x
3. Step 3: Cross multiply
   9,105.09x = 12,564.89 × 5,126.19
4. Step 4: Simplify right side
   9,105.09x = 64,409,987.84
5. Step 5: Solve for x
   x = 64,409,987.84/9,105.09
6. Step 6: Final answer
   x = 7,074.06