Finding the Fourth Proportional to 19,899.58, 27,462.09 and 10,947.46

Step by Step Solution

1. Step 1: Write the proportion equation
   19,899.58 : 27,462.09 = 10,947.46 : x
2. Step 2: Convert to fraction form
   19,899.58/27,462.09 = 10,947.46/x
3. Step 3: Cross multiply
   19,899.58x = 27,462.09 × 10,947.46
4. Step 4: Simplify right side
   19,899.58x = 300,640,131.79
5. Step 5: Solve for x
   x = 300,640,131.79/19,899.58
6. Step 6: Final answer
   x = 15,107.86