Finding the Fourth Proportional to 8,667.57, 13,001.18 and 5,549.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.57 : 13,001.18 = 5,549.07 : x
2. Step 2: Convert to fraction form
   8,667.57/13,001.18 = 5,549.07/x
3. Step 3: Cross multiply
   8,667.57x = 13,001.18 × 5,549.07
4. Step 4: Simplify right side
   8,667.57x = 72,144,430.16
5. Step 5: Solve for x
   x = 72,144,430.16/8,667.57
6. Step 6: Final answer
   x = 8,323.49