Finding the Fourth Proportional to 12,846.36, 17,728.56 and 10,047

Step by Step Solution

1. Step 1: Write the proportion equation
   12,846.36 : 17,728.56 = 10,047 : x
2. Step 2: Convert to fraction form
   12,846.36/17,728.56 = 10,047/x
3. Step 3: Cross multiply
   12,846.36x = 17,728.56 × 10,047
4. Step 4: Simplify right side
   12,846.36x = 178,118,842.32
5. Step 5: Solve for x
   x = 178,118,842.32/12,846.36
6. Step 6: Final answer
   x = 13,865.32