Finding the Fourth Proportional to 5,081.80, 7,012.24 and 2,812.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,081.80 : 7,012.24 = 2,812.82 : x
2. Step 2: Convert to fraction form
   5,081.80/7,012.24 = 2,812.82/x
3. Step 3: Cross multiply
   5,081.80x = 7,012.24 × 2,812.82
4. Step 4: Simplify right side
   5,081.80x = 19,724,168.92
5. Step 5: Solve for x
   x = 19,724,168.92/5,081.80
6. Step 6: Final answer
   x = 3,881.34