Finding the Fourth Proportional to 19,900.55, 27,461.77 and 10,947.82

Step by Step Solution

1. Step 1: Write the proportion equation
   19,900.55 : 27,461.77 = 10,947.82 : x
2. Step 2: Convert to fraction form
   19,900.55/27,461.77 = 10,947.82/x
3. Step 3: Cross multiply
   19,900.55x = 27,461.77 × 10,947.82
4. Step 4: Simplify right side
   19,900.55x = 300,646,460.10
5. Step 5: Solve for x
   x = 300,646,460.10/19,900.55
6. Step 6: Final answer
   x = 15,107.44