Finding the Fourth Proportional to 13,404.52, 20,081.39 and 8,948.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.52 : 20,081.39 = 8,948.75 : x
2. Step 2: Convert to fraction form
   13,404.52/20,081.39 = 8,948.75/x
3. Step 3: Cross multiply
   13,404.52x = 20,081.39 × 8,948.75
4. Step 4: Simplify right side
   13,404.52x = 179,703,260.73
5. Step 5: Solve for x
   x = 179,703,260.73/13,404.52
6. Step 6: Final answer
   x = 13,406.17