Finding the Fourth Proportional to 20,224.18, 30,343.47 and 10,368.10

Step by Step Solution

1. Step 1: Write the proportion equation
   20,224.18 : 30,343.47 = 10,368.10 : x
2. Step 2: Convert to fraction form
   20,224.18/30,343.47 = 10,368.10/x
3. Step 3: Cross multiply
   20,224.18x = 30,343.47 × 10,368.10
4. Step 4: Simplify right side
   20,224.18x = 314,604,131.31
5. Step 5: Solve for x
   x = 314,604,131.31/20,224.18
6. Step 6: Final answer
   x = 15,555.84