Finding the Fourth Proportional to 6,219.99, 8,581.55 and 3,530.93

Step by Step Solution

1. Step 1: Write the proportion equation
   6,219.99 : 8,581.55 = 3,530.93 : x
2. Step 2: Convert to fraction form
   6,219.99/8,581.55 = 3,530.93/x
3. Step 3: Cross multiply
   6,219.99x = 8,581.55 × 3,530.93
4. Step 4: Simplify right side
   6,219.99x = 30,300,791.78
5. Step 5: Solve for x
   x = 30,300,791.78/6,219.99
6. Step 6: Final answer
   x = 4,871.52