Finding the Fourth Proportional to 6,870.42, 9,481.23 and 3,726.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.42 : 9,481.23 = 3,726.63 : x
2. Step 2: Convert to fraction form
   6,870.42/9,481.23 = 3,726.63/x
3. Step 3: Cross multiply
   6,870.42x = 9,481.23 × 3,726.63
4. Step 4: Simplify right side
   6,870.42x = 35,333,036.15
5. Step 5: Solve for x
   x = 35,333,036.15/6,870.42
6. Step 6: Final answer
   x = 5,142.78