Finding the Fourth Proportional to 12,784.88, 19,171.83 and 4,462.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,784.88 : 19,171.83 = 4,462.40 : x
2. Step 2: Convert to fraction form
   12,784.88/19,171.83 = 4,462.40/x
3. Step 3: Cross multiply
   12,784.88x = 19,171.83 × 4,462.40
4. Step 4: Simplify right side
   12,784.88x = 85,552,374.19
5. Step 5: Solve for x
   x = 85,552,374.19/12,784.88
6. Step 6: Final answer
   x = 6,691.68