Finding the Fourth Proportional to 8,730, 12,049.56 and 5,374.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,730 : 12,049.56 = 5,374.98 : x
2. Step 2: Convert to fraction form
   8,730/12,049.56 = 5,374.98/x
3. Step 3: Cross multiply
   8,730x = 12,049.56 × 5,374.98
4. Step 4: Simplify right side
   8,730x = 64,766,144.01
5. Step 5: Solve for x
   x = 64,766,144.01/8,730
6. Step 6: Final answer
   x = 7,418.80