Finding the Fourth Proportional to 46,002.48, 69,011.94 and 12,721.83

Step by Step Solution

1. Step 1: Write the proportion equation
   46,002.48 : 69,011.94 = 12,721.83 : x
2. Step 2: Convert to fraction form
   46,002.48/69,011.94 = 12,721.83/x
3. Step 3: Cross multiply
   46,002.48x = 69,011.94 × 12,721.83
4. Step 4: Simplify right side
   46,002.48x = 877,958,168.65
5. Step 5: Solve for x
   x = 877,958,168.65/46,002.48
6. Step 6: Final answer
   x = 19,085.02