Finding the Fourth Proportional to 13,696.88, 18,901.82 and 7,409.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,696.88 : 18,901.82 = 7,409.39 : x
2. Step 2: Convert to fraction form
   13,696.88/18,901.82 = 7,409.39/x
3. Step 3: Cross multiply
   13,696.88x = 18,901.82 × 7,409.39
4. Step 4: Simplify right side
   13,696.88x = 140,050,880.10
5. Step 5: Solve for x
   x = 140,050,880.10/13,696.88
6. Step 6: Final answer
   x = 10,225.02