Finding the Fourth Proportional to 5,169.74, 7,719.50 and 5,029.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,169.74 : 7,719.50 = 5,029.61 : x
2. Step 2: Convert to fraction form
   5,169.74/7,719.50 = 5,029.61/x
3. Step 3: Cross multiply
   5,169.74x = 7,719.50 × 5,029.61
4. Step 4: Simplify right side
   5,169.74x = 38,826,010.65
5. Step 5: Solve for x
   x = 38,826,010.65/5,169.74
6. Step 6: Final answer
   x = 7,510.25