Finding the Fourth Proportional to 19,827.83, 27,361.31 and 15,103.91

Step by Step Solution

1. Step 1: Write the proportion equation
   19,827.83 : 27,361.31 = 15,103.91 : x
2. Step 2: Convert to fraction form
   19,827.83/27,361.31 = 15,103.91/x
3. Step 3: Cross multiply
   19,827.83x = 27,361.31 × 15,103.91
4. Step 4: Simplify right side
   19,827.83x = 413,262,551.40
5. Step 5: Solve for x
   x = 413,262,551.40/19,827.83
6. Step 6: Final answer
   x = 20,842.56