Finding the Fourth Proportional to 7,035.42, 10,553.91 and 3,139.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,035.42 : 10,553.91 = 3,139.32 : x
2. Step 2: Convert to fraction form
   7,035.42/10,553.91 = 3,139.32/x
3. Step 3: Cross multiply
   7,035.42x = 10,553.91 × 3,139.32
4. Step 4: Simplify right side
   7,035.42x = 33,132,100.74
5. Step 5: Solve for x
   x = 33,132,100.74/7,035.42
6. Step 6: Final answer
   x = 4,709.33