Finding the Fourth Proportional to 12,790.34, 19,164.65 and 7,849.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,790.34 : 19,164.65 = 7,849.55 : x
2. Step 2: Convert to fraction form
   12,790.34/19,164.65 = 7,849.55/x
3. Step 3: Cross multiply
   12,790.34x = 19,164.65 × 7,849.55
4. Step 4: Simplify right side
   12,790.34x = 150,433,743.34
5. Step 5: Solve for x
   x = 150,433,743.34/12,790.34
6. Step 6: Final answer
   x = 11,761.52