Finding the Fourth Proportional to 12,415.04, 17,132.72 and 6,826

Step by Step Solution

1. Step 1: Write the proportion equation
   12,415.04 : 17,132.72 = 6,826 : x
2. Step 2: Convert to fraction form
   12,415.04/17,132.72 = 6,826/x
3. Step 3: Cross multiply
   12,415.04x = 17,132.72 × 6,826
4. Step 4: Simplify right side
   12,415.04x = 116,947,946.72
5. Step 5: Solve for x
   x = 116,947,946.72/12,415.04
6. Step 6: Final answer
   x = 9,419.86