Finding the Fourth Proportional to 6,931.98, 10,387.04 and 3,807.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,931.98 : 10,387.04 = 3,807.30 : x
2. Step 2: Convert to fraction form
   6,931.98/10,387.04 = 3,807.30/x
3. Step 3: Cross multiply
   6,931.98x = 10,387.04 × 3,807.30
4. Step 4: Simplify right side
   6,931.98x = 39,546,597.31
5. Step 5: Solve for x
   x = 39,546,597.31/6,931.98
6. Step 6: Final answer
   x = 5,704.95