Finding the Fourth Proportional to 19,826.27, 27,352.72 and 12,656.45

Step by Step Solution

1. Step 1: Write the proportion equation
   19,826.27 : 27,352.72 = 12,656.45 : x
2. Step 2: Convert to fraction form
   19,826.27/27,352.72 = 12,656.45/x
3. Step 3: Cross multiply
   19,826.27x = 27,352.72 × 12,656.45
4. Step 4: Simplify right side
   19,826.27x = 346,188,417.25
5. Step 5: Solve for x
   x = 346,188,417.25/19,826.27
6. Step 6: Final answer
   x = 17,461.10