Finding the Fourth Proportional to 13,169.61, 19,752.89 and 3,308.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,169.61 : 19,752.89 = 3,308.13 : x
2. Step 2: Convert to fraction form
   13,169.61/19,752.89 = 3,308.13/x
3. Step 3: Cross multiply
   13,169.61x = 19,752.89 × 3,308.13
4. Step 4: Simplify right side
   13,169.61x = 65,345,160.84
5. Step 5: Solve for x
   x = 65,345,160.84/13,169.61
6. Step 6: Final answer
   x = 4,961.82