Finding the Fourth Proportional to 22,875.78, 31,568.68 and 12,804.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,875.78 : 31,568.68 = 12,804.42 : x
2. Step 2: Convert to fraction form
   22,875.78/31,568.68 = 12,804.42/x
3. Step 3: Cross multiply
   22,875.78x = 31,568.68 × 12,804.42
4. Step 4: Simplify right side
   22,875.78x = 404,218,535.19
5. Step 5: Solve for x
   x = 404,218,535.19/22,875.78
6. Step 6: Final answer
   x = 17,670.16