Finding the Fourth Proportional to 9,005.16, 12,423.42 and 5,467.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,005.16 : 12,423.42 = 5,467.80 : x
2. Step 2: Convert to fraction form
   9,005.16/12,423.42 = 5,467.80/x
3. Step 3: Cross multiply
   9,005.16x = 12,423.42 × 5,467.80
4. Step 4: Simplify right side
   9,005.16x = 67,928,775.88
5. Step 5: Solve for x
   x = 67,928,775.88/9,005.16
6. Step 6: Final answer
   x = 7,543.32