Finding the Fourth Proportional to 13,109.99, 19,665.69 and 3,751.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.99 : 19,665.69 = 3,751.38 : x
2. Step 2: Convert to fraction form
   13,109.99/19,665.69 = 3,751.38/x
3. Step 3: Cross multiply
   13,109.99x = 19,665.69 × 3,751.38
4. Step 4: Simplify right side
   13,109.99x = 73,773,462.08
5. Step 5: Solve for x
   x = 73,773,462.08/13,109.99
6. Step 6: Final answer
   x = 5,627.27