Finding the Fourth Proportional to 19,142.17, 28,715.31 and 8,049.98

Step by Step Solution

1. Step 1: Write the proportion equation
   19,142.17 : 28,715.31 = 8,049.98 : x
2. Step 2: Convert to fraction form
   19,142.17/28,715.31 = 8,049.98/x
3. Step 3: Cross multiply
   19,142.17x = 28,715.31 × 8,049.98
4. Step 4: Simplify right side
   19,142.17x = 231,157,742.98
5. Step 5: Solve for x
   x = 231,157,742.98/19,142.17
6. Step 6: Final answer
   x = 12,075.84