Finding the Fourth Proportional to 13,699.46, 18,905.25 and 7,411.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,699.46 : 18,905.25 = 7,411.82 : x
2. Step 2: Convert to fraction form
   13,699.46/18,905.25 = 7,411.82/x
3. Step 3: Cross multiply
   13,699.46x = 18,905.25 × 7,411.82
4. Step 4: Simplify right side
   13,699.46x = 140,122,310.06
5. Step 5: Solve for x
   x = 140,122,310.06/13,699.46
6. Step 6: Final answer
   x = 10,228.31