Finding the Fourth Proportional to 13,839.15, 19,100.47 and 8,173.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,839.15 : 19,100.47 = 8,173.52 : x
2. Step 2: Convert to fraction form
   13,839.15/19,100.47 = 8,173.52/x
3. Step 3: Cross multiply
   13,839.15x = 19,100.47 × 8,173.52
4. Step 4: Simplify right side
   13,839.15x = 156,118,073.55
5. Step 5: Solve for x
   x = 156,118,073.55/13,839.15
6. Step 6: Final answer
   x = 11,280.90