Finding the Fourth Proportional to 21,846.51, 30,147.30 and 13,362.84

Step by Step Solution

1. Step 1: Write the proportion equation
   21,846.51 : 30,147.30 = 13,362.84 : x
2. Step 2: Convert to fraction form
   21,846.51/30,147.30 = 13,362.84/x
3. Step 3: Cross multiply
   21,846.51x = 30,147.30 × 13,362.84
4. Step 4: Simplify right side
   21,846.51x = 402,853,546.33
5. Step 5: Solve for x
   x = 402,853,546.33/21,846.51
6. Step 6: Final answer
   x = 18,440.18