Finding the Fourth Proportional to 10,463.18, 15,674.72 and 10,111.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,463.18 : 15,674.72 = 10,111.43 : x
2. Step 2: Convert to fraction form
   10,463.18/15,674.72 = 10,111.43/x
3. Step 3: Cross multiply
   10,463.18x = 15,674.72 × 10,111.43
4. Step 4: Simplify right side
   10,463.18x = 158,493,822.68
5. Step 5: Solve for x
   x = 158,493,822.68/10,463.18
6. Step 6: Final answer
   x = 15,147.78