Finding the Fourth Proportional to 12,784.56, 19,173.78 and 4,885.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,784.56 : 19,173.78 = 4,885.44 : x
2. Step 2: Convert to fraction form
   12,784.56/19,173.78 = 4,885.44/x
3. Step 3: Cross multiply
   12,784.56x = 19,173.78 × 4,885.44
4. Step 4: Simplify right side
   12,784.56x = 93,672,351.76
5. Step 5: Solve for x
   x = 93,672,351.76/12,784.56
6. Step 6: Final answer
   x = 7,326.99