Finding the Fourth Proportional to 13,162.99, 19,749.89 and 5,372.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,162.99 : 19,749.89 = 5,372.59 : x
2. Step 2: Convert to fraction form
   13,162.99/19,749.89 = 5,372.59/x
3. Step 3: Cross multiply
   13,162.99x = 19,749.89 × 5,372.59
4. Step 4: Simplify right side
   13,162.99x = 106,108,034.65
5. Step 5: Solve for x
   x = 106,108,034.65/13,162.99
6. Step 6: Final answer
   x = 8,061.09