Finding the Fourth Proportional to 13,467.20, 18,584.56 and 7,802.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,467.20 : 18,584.56 = 7,802.72 : x
2. Step 2: Convert to fraction form
   13,467.20/18,584.56 = 7,802.72/x
3. Step 3: Cross multiply
   13,467.20x = 18,584.56 × 7,802.72
4. Step 4: Simplify right side
   13,467.20x = 145,010,118.00
5. Step 5: Solve for x
   x = 145,010,118.00/13,467.20
6. Step 6: Final answer
   x = 10,767.65