Finding the Fourth Proportional to 13,901.56, 19,185.51 and 7,934.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,901.56 : 19,185.51 = 7,934.12 : x
2. Step 2: Convert to fraction form
   13,901.56/19,185.51 = 7,934.12/x
3. Step 3: Cross multiply
   13,901.56x = 19,185.51 × 7,934.12
4. Step 4: Simplify right side
   13,901.56x = 152,220,144.37
5. Step 5: Solve for x
   x = 152,220,144.37/13,901.56
6. Step 6: Final answer
   x = 10,949.86