Finding the Fourth Proportional to 13,103.78, 19,658.62 and 4,783.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.78 : 19,658.62 = 4,783.83 : x
2. Step 2: Convert to fraction form
   13,103.78/19,658.62 = 4,783.83/x
3. Step 3: Cross multiply
   13,103.78x = 19,658.62 × 4,783.83
4. Step 4: Simplify right side
   13,103.78x = 94,043,607.70
5. Step 5: Solve for x
   x = 94,043,607.70/13,103.78
6. Step 6: Final answer
   x = 7,176.83