Finding the Fourth Proportional to 19,983.96, 27,576.04 and 12,801.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,983.96 : 27,576.04 = 12,801.15 : x
2. Step 2: Convert to fraction form
   19,983.96/27,576.04 = 12,801.15/x
3. Step 3: Cross multiply
   19,983.96x = 27,576.04 × 12,801.15
4. Step 4: Simplify right side
   19,983.96x = 353,005,024.45
5. Step 5: Solve for x
   x = 353,005,024.45/19,983.96
6. Step 6: Final answer
   x = 17,664.42