Finding the Fourth Proportional to 13,874.04, 19,147.86 and 9,168.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,874.04 : 19,147.86 = 9,168.12 : x
2. Step 2: Convert to fraction form
   13,874.04/19,147.86 = 9,168.12/x
3. Step 3: Cross multiply
   13,874.04x = 19,147.86 × 9,168.12
4. Step 4: Simplify right side
   13,874.04x = 175,549,878.22
5. Step 5: Solve for x
   x = 175,549,878.22/13,874.04
6. Step 6: Final answer
   x = 12,653.12