Finding the Fourth Proportional to 35,408.83, 53,124.48 and 10,449

Step by Step Solution

1. Step 1: Write the proportion equation
   35,408.83 : 53,124.48 = 10,449 : x
2. Step 2: Convert to fraction form
   35,408.83/53,124.48 = 10,449/x
3. Step 3: Cross multiply
   35,408.83x = 53,124.48 × 10,449
4. Step 4: Simplify right side
   35,408.83x = 555,097,691.52
5. Step 5: Solve for x
   x = 555,097,691.52/35,408.83
6. Step 6: Final answer
   x = 15,676.82