Finding the Fourth Proportional to 8,942.34, 12,339.86 and 5,584.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,942.34 : 12,339.86 = 5,584.96 : x
2. Step 2: Convert to fraction form
   8,942.34/12,339.86 = 5,584.96/x
3. Step 3: Cross multiply
   8,942.34x = 12,339.86 × 5,584.96
4. Step 4: Simplify right side
   8,942.34x = 68,917,534.88
5. Step 5: Solve for x
   x = 68,917,534.88/8,942.34
6. Step 6: Final answer
   x = 7,706.88