Finding the Fourth Proportional to 13,169.48, 19,761.52 and 5,377.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,169.48 : 19,761.52 = 5,377.69 : x
2. Step 2: Convert to fraction form
   13,169.48/19,761.52 = 5,377.69/x
3. Step 3: Cross multiply
   13,169.48x = 19,761.52 × 5,377.69
4. Step 4: Simplify right side
   13,169.48x = 106,271,265.64
5. Step 5: Solve for x
   x = 106,271,265.64/13,169.48
6. Step 6: Final answer
   x = 8,069.51