Finding the Fourth Proportional to 13,179.34, 19,767.54 and 3,318.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,179.34 : 19,767.54 = 3,318.62 : x
2. Step 2: Convert to fraction form
   13,179.34/19,767.54 = 3,318.62/x
3. Step 3: Cross multiply
   13,179.34x = 19,767.54 × 3,318.62
4. Step 4: Simplify right side
   13,179.34x = 65,600,953.59
5. Step 5: Solve for x
   x = 65,600,953.59/13,179.34
6. Step 6: Final answer
   x = 4,977.56