Finding the Fourth Proportional to 12,848.37, 17,736.20 and 7,814.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,848.37 : 17,736.20 = 7,814.19 : x
2. Step 2: Convert to fraction form
   12,848.37/17,736.20 = 7,814.19/x
3. Step 3: Cross multiply
   12,848.37x = 17,736.20 × 7,814.19
4. Step 4: Simplify right side
   12,848.37x = 138,594,093.42
5. Step 5: Solve for x
   x = 138,594,093.42/12,848.37
6. Step 6: Final answer
   x = 10,786.90