Finding the Fourth Proportional to 22,405.86, 30,923.10 and 12,975.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,405.86 : 30,923.10 = 12,975.12 : x
2. Step 2: Convert to fraction form
   22,405.86/30,923.10 = 12,975.12/x
3. Step 3: Cross multiply
   22,405.86x = 30,923.10 × 12,975.12
4. Step 4: Simplify right side
   22,405.86x = 401,230,933.27
5. Step 5: Solve for x
   x = 401,230,933.27/22,405.86
6. Step 6: Final answer
   x = 17,907.41