Finding the Fourth Proportional to 9,110.02, 12,572.34 and 5,131.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,110.02 : 12,572.34 = 5,131.42 : x
2. Step 2: Convert to fraction form
   9,110.02/12,572.34 = 5,131.42/x
3. Step 3: Cross multiply
   9,110.02x = 12,572.34 × 5,131.42
4. Step 4: Simplify right side
   9,110.02x = 64,513,956.92
5. Step 5: Solve for x
   x = 64,513,956.92/9,110.02
6. Step 6: Final answer
   x = 7,081.65