Finding the Fourth Proportional to 7,404.82, 10,215.72 and 4,216.51

Step by Step Solution

1. Step 1: Write the proportion equation
   7,404.82 : 10,215.72 = 4,216.51 : x
2. Step 2: Convert to fraction form
   7,404.82/10,215.72 = 4,216.51/x
3. Step 3: Cross multiply
   7,404.82x = 10,215.72 × 4,216.51
4. Step 4: Simplify right side
   7,404.82x = 43,074,640.84
5. Step 5: Solve for x
   x = 43,074,640.84/7,404.82
6. Step 6: Final answer
   x = 5,817.11