Finding the Fourth Proportional to 6,870.18, 9,480.93 and 3,726.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.18 : 9,480.93 = 3,726.42 : x
2. Step 2: Convert to fraction form
   6,870.18/9,480.93 = 3,726.42/x
3. Step 3: Cross multiply
   6,870.18x = 9,480.93 × 3,726.42
4. Step 4: Simplify right side
   6,870.18x = 35,329,927.17
5. Step 5: Solve for x
   x = 35,329,927.17/6,870.18
6. Step 6: Final answer
   x = 5,142.50