Finding the Fourth Proportional to 8,069.58, 12,107.48 and 3,142.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,069.58 : 12,107.48 = 3,142.69 : x
2. Step 2: Convert to fraction form
   8,069.58/12,107.48 = 3,142.69/x
3. Step 3: Cross multiply
   8,069.58x = 12,107.48 × 3,142.69
4. Step 4: Simplify right side
   8,069.58x = 38,050,010.34
5. Step 5: Solve for x
   x = 38,050,010.34/8,069.58
6. Step 6: Final answer
   x = 4,715.24