Finding the Fourth Proportional to 13,903.56, 19,185.09 and 7,934.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,903.56 : 19,185.09 = 7,934.88 : x
2. Step 2: Convert to fraction form
   13,903.56/19,185.09 = 7,934.88/x
3. Step 3: Cross multiply
   13,903.56x = 19,185.09 × 7,934.88
4. Step 4: Simplify right side
   13,903.56x = 152,231,386.94
5. Step 5: Solve for x
   x = 152,231,386.94/13,903.56
6. Step 6: Final answer
   x = 10,949.09