Finding the Fourth Proportional to 7,111.49, 10,655.55 and 5,021.35

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.49 : 10,655.55 = 5,021.35 : x
2. Step 2: Convert to fraction form
   7,111.49/10,655.55 = 5,021.35/x
3. Step 3: Cross multiply
   7,111.49x = 10,655.55 × 5,021.35
4. Step 4: Simplify right side
   7,111.49x = 53,505,219.35
5. Step 5: Solve for x
   x = 53,505,219.35/7,111.49
6. Step 6: Final answer
   x = 7,523.78