Finding the Fourth Proportional to 19,899.39, 27,461.88 and 10,947.59

Step by Step Solution

1. Step 1: Write the proportion equation
   19,899.39 : 27,461.88 = 10,947.59 : x
2. Step 2: Convert to fraction form
   19,899.39/27,461.88 = 10,947.59/x
3. Step 3: Cross multiply
   19,899.39x = 27,461.88 × 10,947.59
4. Step 4: Simplify right side
   19,899.39x = 300,641,265.56
5. Step 5: Solve for x
   x = 300,641,265.56/19,899.39
6. Step 6: Final answer
   x = 15,108.06