Finding the Fourth Proportional to 13,445.44, 18,522.59 and 9,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,445.44 : 18,522.59 = 9,404.72 : x
2. Step 2: Convert to fraction form
   13,445.44/18,522.59 = 9,404.72/x
3. Step 3: Cross multiply
   13,445.44x = 18,522.59 × 9,404.72
4. Step 4: Simplify right side
   13,445.44x = 174,199,734.51
5. Step 5: Solve for x
   x = 174,199,734.51/13,445.44
6. Step 6: Final answer
   x = 12,956.05