Finding the Fourth Proportional to 13,397.54, 18,487.98 and 7,733.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,397.54 : 18,487.98 = 7,733.31 : x
2. Step 2: Convert to fraction form
   13,397.54/18,487.98 = 7,733.31/x
3. Step 3: Cross multiply
   13,397.54x = 18,487.98 × 7,733.31
4. Step 4: Simplify right side
   13,397.54x = 142,973,211.28
5. Step 5: Solve for x
   x = 142,973,211.28/13,397.54
6. Step 6: Final answer
   x = 10,671.61