Finding the Fourth Proportional to 5,111.96, 7,621.91 and 4,984.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.96 : 7,621.91 = 4,984.38 : x
2. Step 2: Convert to fraction form
   5,111.96/7,621.91 = 4,984.38/x
3. Step 3: Cross multiply
   5,111.96x = 7,621.91 × 4,984.38
4. Step 4: Simplify right side
   5,111.96x = 37,990,470.84
5. Step 5: Solve for x
   x = 37,990,470.84/5,111.96
6. Step 6: Final answer
   x = 7,431.69