Finding the Fourth Proportional to 5,099.12, 7,648.72 and 1,401.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,099.12 : 7,648.72 = 1,401.20 : x
2. Step 2: Convert to fraction form
   5,099.12/7,648.72 = 1,401.20/x
3. Step 3: Cross multiply
   5,099.12x = 7,648.72 × 1,401.20
4. Step 4: Simplify right side
   5,099.12x = 10,717,386.46
5. Step 5: Solve for x
   x = 10,717,386.46/5,099.12
6. Step 6: Final answer
   x = 2,101.81