Finding the Fourth Proportional to 13,144.62, 19,705.05 and 4,818.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,144.62 : 19,705.05 = 4,818.72 : x
2. Step 2: Convert to fraction form
   13,144.62/19,705.05 = 4,818.72/x
3. Step 3: Cross multiply
   13,144.62x = 19,705.05 × 4,818.72
4. Step 4: Simplify right side
   13,144.62x = 94,953,118.54
5. Step 5: Solve for x
   x = 94,953,118.54/13,144.62
6. Step 6: Final answer
   x = 7,223.72