Finding the Fourth Proportional to 12,980.32, 19,470.51 and 4,096.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,980.32 : 19,470.51 = 4,096.47 : x
2. Step 2: Convert to fraction form
   12,980.32/19,470.51 = 4,096.47/x
3. Step 3: Cross multiply
   12,980.32x = 19,470.51 × 4,096.47
4. Step 4: Simplify right side
   12,980.32x = 79,760,433.11
5. Step 5: Solve for x
   x = 79,760,433.11/12,980.32
6. Step 6: Final answer
   x = 6,144.72