Finding the Fourth Proportional to 12,383.58, 17,074.71 and 10,137.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,383.58 : 17,074.71 = 10,137.18 : x
2. Step 2: Convert to fraction form
   12,383.58/17,074.71 = 10,137.18/x
3. Step 3: Cross multiply
   12,383.58x = 17,074.71 × 10,137.18
4. Step 4: Simplify right side
   12,383.58x = 173,089,408.72
5. Step 5: Solve for x
   x = 173,089,408.72/12,383.58
6. Step 6: Final answer
   x = 13,977.33