Finding the Fourth Proportional to 5,189.98, 7,162.98 and 3,065.74

Step by Step Solution

1. Step 1: Write the proportion equation
   5,189.98 : 7,162.98 = 3,065.74 : x
2. Step 2: Convert to fraction form
   5,189.98/7,162.98 = 3,065.74/x
3. Step 3: Cross multiply
   5,189.98x = 7,162.98 × 3,065.74
4. Step 4: Simplify right side
   5,189.98x = 21,959,834.31
5. Step 5: Solve for x
   x = 21,959,834.31/5,189.98
6. Step 6: Final answer
   x = 4,231.20