Finding the Fourth Proportional to 10,846.42, 14,973.38 and 8,418.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,846.42 : 14,973.38 = 8,418.38 : x
2. Step 2: Convert to fraction form
   10,846.42/14,973.38 = 8,418.38/x
3. Step 3: Cross multiply
   10,846.42x = 14,973.38 × 8,418.38
4. Step 4: Simplify right side
   10,846.42x = 126,051,602.72
5. Step 5: Solve for x
   x = 126,051,602.72/10,846.42
6. Step 6: Final answer
   x = 11,621.49