Finding the Fourth Proportional to 14,068.56, 21,103.05 and 3,680.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,068.56 : 21,103.05 = 3,680.31 : x
2. Step 2: Convert to fraction form
   14,068.56/21,103.05 = 3,680.31/x
3. Step 3: Cross multiply
   14,068.56x = 21,103.05 × 3,680.31
4. Step 4: Simplify right side
   14,068.56x = 77,665,765.95
5. Step 5: Solve for x
   x = 77,665,765.95/14,068.56
6. Step 6: Final answer
   x = 5,520.52