Finding the Fourth Proportional to 10,131.43, 13,980.71 and 6,354.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.43 : 13,980.71 = 6,354.44 : x
2. Step 2: Convert to fraction form
   10,131.43/13,980.71 = 6,354.44/x
3. Step 3: Cross multiply
   10,131.43x = 13,980.71 × 6,354.44
4. Step 4: Simplify right side
   10,131.43x = 88,839,582.85
5. Step 5: Solve for x
   x = 88,839,582.85/10,131.43
6. Step 6: Final answer
   x = 8,768.71