Finding the Fourth Proportional to 10,005.98, 14,937.54 and 8,694.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,005.98 : 14,937.54 = 8,694.14 : x
2. Step 2: Convert to fraction form
   10,005.98/14,937.54 = 8,694.14/x
3. Step 3: Cross multiply
   10,005.98x = 14,937.54 × 8,694.14
4. Step 4: Simplify right side
   10,005.98x = 129,869,020.54
5. Step 5: Solve for x
   x = 129,869,020.54/10,005.98
6. Step 6: Final answer
   x = 12,979.14