Finding the Fourth Proportional to 5,410.02, 8,111.72 and 2,119.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,410.02 : 8,111.72 = 2,119.16 : x
2. Step 2: Convert to fraction form
   5,410.02/8,111.72 = 2,119.16/x
3. Step 3: Cross multiply
   5,410.02x = 8,111.72 × 2,119.16
4. Step 4: Simplify right side
   5,410.02x = 17,190,032.56
5. Step 5: Solve for x
   x = 17,190,032.56/5,410.02
6. Step 6: Final answer
   x = 3,177.44