Finding the Fourth Proportional to 6,855.56, 9,460.15 and 3,870.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,855.56 : 9,460.15 = 3,870.98 : x
2. Step 2: Convert to fraction form
   6,855.56/9,460.15 = 3,870.98/x
3. Step 3: Cross multiply
   6,855.56x = 9,460.15 × 3,870.98
4. Step 4: Simplify right side
   6,855.56x = 36,619,994.47
5. Step 5: Solve for x
   x = 36,619,994.47/6,855.56
6. Step 6: Final answer
   x = 5,341.65