Finding the Fourth Proportional to 6,669.42, 10,012.77 and 4,209.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,669.42 : 10,012.77 = 4,209.18 : x
2. Step 2: Convert to fraction form
   6,669.42/10,012.77 = 4,209.18/x
3. Step 3: Cross multiply
   6,669.42x = 10,012.77 × 4,209.18
4. Step 4: Simplify right side
   6,669.42x = 42,145,551.23
5. Step 5: Solve for x
   x = 42,145,551.23/6,669.42
6. Step 6: Final answer
   x = 6,319.22