Finding the Fourth Proportional to 12,841.94, 17,722.35 and 7,538.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,841.94 : 17,722.35 = 7,538.47 : x
2. Step 2: Convert to fraction form
   12,841.94/17,722.35 = 7,538.47/x
3. Step 3: Cross multiply
   12,841.94x = 17,722.35 × 7,538.47
4. Step 4: Simplify right side
   12,841.94x = 133,599,403.80
5. Step 5: Solve for x
   x = 133,599,403.80/12,841.94
6. Step 6: Final answer
   x = 10,403.37