Finding the Fourth Proportional to 5,131.42, 7,083.72 and 3,006.65

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131.42 : 7,083.72 = 3,006.65 : x
2. Step 2: Convert to fraction form
   5,131.42/7,083.72 = 3,006.65/x
3. Step 3: Cross multiply
   5,131.42x = 7,083.72 × 3,006.65
4. Step 4: Simplify right side
   5,131.42x = 21,298,266.74
5. Step 5: Solve for x
   x = 21,298,266.74/5,131.42
6. Step 6: Final answer
   x = 4,150.56