Finding the Fourth Proportional to 7,142.79, 10,709.87 and 4,827.27

Step by Step Solution

1. Step 1: Write the proportion equation
   7,142.79 : 10,709.87 = 4,827.27 : x
2. Step 2: Convert to fraction form
   7,142.79/10,709.87 = 4,827.27/x
3. Step 3: Cross multiply
   7,142.79x = 10,709.87 × 4,827.27
4. Step 4: Simplify right side
   7,142.79x = 51,699,410.02
5. Step 5: Solve for x
   x = 51,699,410.02/7,142.79
6. Step 6: Final answer
   x = 7,237.99