Finding the Fourth Proportional to 13,364.01, 18,435.84 and 8,828.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,364.01 : 18,435.84 = 8,828.47 : x
2. Step 2: Convert to fraction form
   13,364.01/18,435.84 = 8,828.47/x
3. Step 3: Cross multiply
   13,364.01x = 18,435.84 × 8,828.47
4. Step 4: Simplify right side
   13,364.01x = 162,760,168.19
5. Step 5: Solve for x
   x = 162,760,168.19/13,364.01
6. Step 6: Final answer
   x = 12,178.99