Finding the Fourth Proportional to 7,003.80, 9,662.46 and 4,878.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.80 : 9,662.46 = 4,878.76 : x
2. Step 2: Convert to fraction form
   7,003.80/9,662.46 = 4,878.76/x
3. Step 3: Cross multiply
   7,003.80x = 9,662.46 × 4,878.76
4. Step 4: Simplify right side
   7,003.80x = 47,140,823.35
5. Step 5: Solve for x
   x = 47,140,823.35/7,003.80
6. Step 6: Final answer
   x = 6,730.75