Finding the Fourth Proportional to 13,846.72, 19,129.38 and 9,078.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,846.72 : 19,129.38 = 9,078.04 : x
2. Step 2: Convert to fraction form
   13,846.72/19,129.38 = 9,078.04/x
3. Step 3: Cross multiply
   13,846.72x = 19,129.38 × 9,078.04
4. Step 4: Simplify right side
   13,846.72x = 173,657,276.82
5. Step 5: Solve for x
   x = 173,657,276.82/13,846.72
6. Step 6: Final answer
   x = 12,541.40