Finding the Fourth Proportional to 6,883.89, 10,317.93 and 3,131.64

Step by Step Solution

1. Step 1: Write the proportion equation
   6,883.89 : 10,317.93 = 3,131.64 : x
2. Step 2: Convert to fraction form
   6,883.89/10,317.93 = 3,131.64/x
3. Step 3: Cross multiply
   6,883.89x = 10,317.93 × 3,131.64
4. Step 4: Simplify right side
   6,883.89x = 32,312,042.31
5. Step 5: Solve for x
   x = 32,312,042.31/6,883.89
6. Step 6: Final answer
   x = 4,693.86