Finding the Fourth Proportional to 13,711.98, 18,922.59 and 7,743.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,711.98 : 18,922.59 = 7,743.72 : x
2. Step 2: Convert to fraction form
   13,711.98/18,922.59 = 7,743.72/x
3. Step 3: Cross multiply
   13,711.98x = 18,922.59 × 7,743.72
4. Step 4: Simplify right side
   13,711.98x = 146,531,238.63
5. Step 5: Solve for x
   x = 146,531,238.63/13,711.98
6. Step 6: Final answer
   x = 10,686.37