Finding the Fourth Proportional to 12,999.98, 17,923.70 and 10,849.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,999.98 : 17,923.70 = 10,849.61 : x
2. Step 2: Convert to fraction form
   12,999.98/17,923.70 = 10,849.61/x
3. Step 3: Cross multiply
   12,999.98x = 17,923.70 × 10,849.61
4. Step 4: Simplify right side
   12,999.98x = 194,465,100.51
5. Step 5: Solve for x
   x = 194,465,100.51/12,999.98
6. Step 6: Final answer
   x = 14,958.88