Finding the Fourth Proportional to 9,110.24, 12,572.18 and 5,131.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,110.24 : 12,572.18 = 5,131.43 : x
2. Step 2: Convert to fraction form
   9,110.24/12,572.18 = 5,131.43/x
3. Step 3: Cross multiply
   9,110.24x = 12,572.18 × 5,131.43
4. Step 4: Simplify right side
   9,110.24x = 64,513,173.10
5. Step 5: Solve for x
   x = 64,513,173.10/9,110.24
6. Step 6: Final answer
   x = 7,081.40