Finding the Fourth Proportional to 39,010.80, 58,522.27 and 12,709.42

Step by Step Solution

1. Step 1: Write the proportion equation
   39,010.80 : 58,522.27 = 12,709.42 : x
2. Step 2: Convert to fraction form
   39,010.80/58,522.27 = 12,709.42/x
3. Step 3: Cross multiply
   39,010.80x = 58,522.27 × 12,709.42
4. Step 4: Simplify right side
   39,010.80x = 743,784,108.78
5. Step 5: Solve for x
   x = 743,784,108.78/39,010.80
6. Step 6: Final answer
   x = 19,066.11