Finding the Fourth Proportional to 9,110.02, 12,571.60 and 5,131.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,110.02 : 12,571.60 = 5,131.17 : x
2. Step 2: Convert to fraction form
   9,110.02/12,571.60 = 5,131.17/x
3. Step 3: Cross multiply
   9,110.02x = 12,571.60 × 5,131.17
4. Step 4: Simplify right side
   9,110.02x = 64,507,016.77
5. Step 5: Solve for x
   x = 64,507,016.77/9,110.02
6. Step 6: Final answer
   x = 7,080.89