Finding the Fourth Proportional to 12,765.88, 19,123.86 and 8,369.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,765.88 : 19,123.86 = 8,369.92 : x
2. Step 2: Convert to fraction form
   12,765.88/19,123.86 = 8,369.92/x
3. Step 3: Cross multiply
   12,765.88x = 19,123.86 × 8,369.92
4. Step 4: Simplify right side
   12,765.88x = 160,065,178.29
5. Step 5: Solve for x
   x = 160,065,178.29/12,765.88
6. Step 6: Final answer
   x = 12,538.52