Finding the Fourth Proportional to 12,915.84, 19,374.72 and 3,682.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,915.84 : 19,374.72 = 3,682.56 : x
2. Step 2: Convert to fraction form
   12,915.84/19,374.72 = 3,682.56/x
3. Step 3: Cross multiply
   12,915.84x = 19,374.72 × 3,682.56
4. Step 4: Simplify right side
   12,915.84x = 71,348,568.88
5. Step 5: Solve for x
   x = 71,348,568.88/12,915.84
6. Step 6: Final answer
   x = 5,524.11