Finding the Fourth Proportional to 6,499.92, 8,969.55 and 3,667.21

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499.92 : 8,969.55 = 3,667.21 : x
2. Step 2: Convert to fraction form
   6,499.92/8,969.55 = 3,667.21/x
3. Step 3: Cross multiply
   6,499.92x = 8,969.55 × 3,667.21
4. Step 4: Simplify right side
   6,499.92x = 32,893,223.46
5. Step 5: Solve for x
   x = 32,893,223.46/6,499.92
6. Step 6: Final answer
   x = 5,060.56