Finding the Fourth Proportional to 6,816.18, 10,219.89 and 2,870.01

Step by Step Solution

1. Step 1: Write the proportion equation
   6,816.18 : 10,219.89 = 2,870.01 : x
2. Step 2: Convert to fraction form
   6,816.18/10,219.89 = 2,870.01/x
3. Step 3: Cross multiply
   6,816.18x = 10,219.89 × 2,870.01
4. Step 4: Simplify right side
   6,816.18x = 29,331,186.50
5. Step 5: Solve for x
   x = 29,331,186.50/6,816.18
6. Step 6: Final answer
   x = 4,303.17