Finding the Fourth Proportional to 12,641.60, 18,964.83 and 4,849.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,641.60 : 18,964.83 = 4,849.82 : x
2. Step 2: Convert to fraction form
   12,641.60/18,964.83 = 4,849.82/x
3. Step 3: Cross multiply
   12,641.60x = 18,964.83 × 4,849.82
4. Step 4: Simplify right side
   12,641.60x = 91,976,011.83
5. Step 5: Solve for x
   x = 91,976,011.83/12,641.60
6. Step 6: Final answer
   x = 7,275.66