Finding the Fourth Proportional to 12,845.39, 19,256.41 and 4,942.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,845.39 : 19,256.41 = 4,942.86 : x
2. Step 2: Convert to fraction form
   12,845.39/19,256.41 = 4,942.86/x
3. Step 3: Cross multiply
   12,845.39x = 19,256.41 × 4,942.86
4. Step 4: Simplify right side
   12,845.39x = 95,181,714.02
5. Step 5: Solve for x
   x = 95,181,714.02/12,845.39
6. Step 6: Final answer
   x = 7,409.80