Finding the Fourth Proportional to 19,510.67, 29,274.89 and 8,269.09

Step by Step Solution

1. Step 1: Write the proportion equation
   19,510.67 : 29,274.89 = 8,269.09 : x
2. Step 2: Convert to fraction form
   19,510.67/29,274.89 = 8,269.09/x
3. Step 3: Cross multiply
   19,510.67x = 29,274.89 × 8,269.09
4. Step 4: Simplify right side
   19,510.67x = 242,076,700.15
5. Step 5: Solve for x
   x = 242,076,700.15/19,510.67
6. Step 6: Final answer
   x = 12,407.40