Finding the Fourth Proportional to 7,089.72, 10,642.29 and 4,131.37

Step by Step Solution

1. Step 1: Write the proportion equation
   7,089.72 : 10,642.29 = 4,131.37 : x
2. Step 2: Convert to fraction form
   7,089.72/10,642.29 = 4,131.37/x
3. Step 3: Cross multiply
   7,089.72x = 10,642.29 × 4,131.37
4. Step 4: Simplify right side
   7,089.72x = 43,967,237.64
5. Step 5: Solve for x
   x = 43,967,237.64/7,089.72
6. Step 6: Final answer
   x = 6,201.55