Finding the Fourth Proportional to 12,787.42, 19,185.72 and 4,468.66

Step by Step Solution

1. Step 1: Write the proportion equation
   12,787.42 : 19,185.72 = 4,468.66 : x
2. Step 2: Convert to fraction form
   12,787.42/19,185.72 = 4,468.66/x
3. Step 3: Cross multiply
   12,787.42x = 19,185.72 × 4,468.66
4. Step 4: Simplify right side
   12,787.42x = 85,734,459.54
5. Step 5: Solve for x
   x = 85,734,459.54/12,787.42
6. Step 6: Final answer
   x = 6,704.59