Finding the Fourth Proportional to 9,110.04, 12,571.59 and 5,131.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,110.04 : 12,571.59 = 5,131.18 : x
2. Step 2: Convert to fraction form
   9,110.04/12,571.59 = 5,131.18/x
3. Step 3: Cross multiply
   9,110.04x = 12,571.59 × 5,131.18
4. Step 4: Simplify right side
   9,110.04x = 64,507,091.18
5. Step 5: Solve for x
   x = 64,507,091.18/9,110.04
6. Step 6: Final answer
   x = 7,080.88