Finding the Fourth Proportional to 13,918.09, 19,206.88 and 7,630.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,918.09 : 19,206.88 = 7,630.46 : x
2. Step 2: Convert to fraction form
   13,918.09/19,206.88 = 7,630.46/x
3. Step 3: Cross multiply
   13,918.09x = 19,206.88 × 7,630.46
4. Step 4: Simplify right side
   13,918.09x = 146,557,329.56
5. Step 5: Solve for x
   x = 146,557,329.56/13,918.09
6. Step 6: Final answer
   x = 10,529.99