Finding the Fourth Proportional to 55,024.80, 82,536.16 and 13,472.16

Step by Step Solution

1. Step 1: Write the proportion equation
   55,024.80 : 82,536.16 = 13,472.16 : x
2. Step 2: Convert to fraction form
   55,024.80/82,536.16 = 13,472.16/x
3. Step 3: Cross multiply
   55,024.80x = 82,536.16 × 13,472.16
4. Step 4: Simplify right side
   55,024.80x = 1,111,940,353.31
5. Step 5: Solve for x
   x = 1,111,940,353.31/55,024.80
6. Step 6: Final answer
   x = 20,207.99