Finding the Fourth Proportional to 12,729.16, 19,088.70 and 3,841.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,729.16 : 19,088.70 = 3,841.72 : x
2. Step 2: Convert to fraction form
   12,729.16/19,088.70 = 3,841.72/x
3. Step 3: Cross multiply
   12,729.16x = 19,088.70 × 3,841.72
4. Step 4: Simplify right side
   12,729.16x = 73,333,440.56
5. Step 5: Solve for x
   x = 73,333,440.56/12,729.16
6. Step 6: Final answer
   x = 5,761.06