Finding the Fourth Proportional to 8,454.51, 12,667.32 and 5,985.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,454.51 : 12,667.32 = 5,985.23 : x
2. Step 2: Convert to fraction form
   8,454.51/12,667.32 = 5,985.23/x
3. Step 3: Cross multiply
   8,454.51x = 12,667.32 × 5,985.23
4. Step 4: Simplify right side
   8,454.51x = 75,816,760.35
5. Step 5: Solve for x
   x = 75,816,760.35/8,454.51
6. Step 6: Final answer
   x = 8,967.61