Finding the Fourth Proportional to 7,748.82, 10,693.41 and 4,212.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,748.82 : 10,693.41 = 4,212.09 : x
2. Step 2: Convert to fraction form
   7,748.82/10,693.41 = 4,212.09/x
3. Step 3: Cross multiply
   7,748.82x = 10,693.41 × 4,212.09
4. Step 4: Simplify right side
   7,748.82x = 45,041,605.33
5. Step 5: Solve for x
   x = 45,041,605.33/7,748.82
6. Step 6: Final answer
   x = 5,812.71