Finding the Fourth Proportional to 13,152.12, 18,149.43 and 7,844.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152.12 : 18,149.43 = 7,844.19 : x
2. Step 2: Convert to fraction form
   13,152.12/18,149.43 = 7,844.19/x
3. Step 3: Cross multiply
   13,152.12x = 18,149.43 × 7,844.19
4. Step 4: Simplify right side
   13,152.12x = 142,367,577.31
5. Step 5: Solve for x
   x = 142,367,577.31/13,152.12
6. Step 6: Final answer
   x = 10,824.69