Finding the Fourth Proportional to 6,878.93, 10,319.69 and 3,131.00

Step by Step Solution

1. Step 1: Write the proportion equation
   6,878.93 : 10,319.69 = 3,131.00 : x
2. Step 2: Convert to fraction form
   6,878.93/10,319.69 = 3,131.00/x
3. Step 3: Cross multiply
   6,878.93x = 10,319.69 × 3,131.00
4. Step 4: Simplify right side
   6,878.93x = 32,310,882.14
5. Step 5: Solve for x
   x = 32,310,882.14/6,878.93
6. Step 6: Final answer
   x = 4,697.08