Finding the Fourth Proportional to 8,667.84, 11,957.76 and 5,522.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.84 : 11,957.76 = 5,522.88 : x
2. Step 2: Convert to fraction form
   8,667.84/11,957.76 = 5,522.88/x
3. Step 3: Cross multiply
   8,667.84x = 11,957.76 × 5,522.88
4. Step 4: Simplify right side
   8,667.84x = 66,041,273.55
5. Step 5: Solve for x
   x = 66,041,273.55/8,667.84
6. Step 6: Final answer
   x = 7,619.12