Finding the Fourth Proportional to 22,443.75, 30,972.38 and 13,012.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,443.75 : 30,972.38 = 13,012.92 : x
2. Step 2: Convert to fraction form
   22,443.75/30,972.38 = 13,012.92/x
3. Step 3: Cross multiply
   22,443.75x = 30,972.38 × 13,012.92
4. Step 4: Simplify right side
   22,443.75x = 403,041,038.09
5. Step 5: Solve for x
   x = 403,041,038.09/22,443.75
6. Step 6: Final answer
   x = 17,957.83