Finding the Fourth Proportional to 8,922.23, 12,312.83 and 5,384.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,922.23 : 12,312.83 = 5,384.69 : x
2. Step 2: Convert to fraction form
   8,922.23/12,312.83 = 5,384.69/x
3. Step 3: Cross multiply
   8,922.23x = 12,312.83 × 5,384.69
4. Step 4: Simplify right side
   8,922.23x = 66,300,772.57
5. Step 5: Solve for x
   x = 66,300,772.57/8,922.23
6. Step 6: Final answer
   x = 7,430.96