Finding the Fourth Proportional to 12,760.60, 19,139.82 and 5,364.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,760.60 : 19,139.82 = 5,364.76 : x
2. Step 2: Convert to fraction form
   12,760.60/19,139.82 = 5,364.76/x
3. Step 3: Cross multiply
   12,760.60x = 19,139.82 × 5,364.76
4. Step 4: Simplify right side
   12,760.60x = 102,680,540.74
5. Step 5: Solve for x
   x = 102,680,540.74/12,760.60
6. Step 6: Final answer
   x = 8,046.69