Finding the Fourth Proportional to 16,071.44, 22,181.16 and 9,782.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,071.44 : 22,181.16 = 9,782.72 : x
2. Step 2: Convert to fraction form
   16,071.44/22,181.16 = 9,782.72/x
3. Step 3: Cross multiply
   16,071.44x = 22,181.16 × 9,782.72
4. Step 4: Simplify right side
   16,071.44x = 216,992,077.56
5. Step 5: Solve for x
   x = 216,992,077.56/16,071.44
6. Step 6: Final answer
   x = 13,501.72