Finding the Fourth Proportional to 7,819.32, 10,791.24 and 5,162.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,819.32 : 10,791.24 = 5,162.12 : x
2. Step 2: Convert to fraction form
   7,819.32/10,791.24 = 5,162.12/x
3. Step 3: Cross multiply
   7,819.32x = 10,791.24 × 5,162.12
4. Step 4: Simplify right side
   7,819.32x = 55,705,675.83
5. Step 5: Solve for x
   x = 55,705,675.83/7,819.32
6. Step 6: Final answer
   x = 7,124.11