Finding the Fourth Proportional to 13,910.56, 19,196.16 and 7,942.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,910.56 : 19,196.16 = 7,942.06 : x
2. Step 2: Convert to fraction form
   13,910.56/19,196.16 = 7,942.06/x
3. Step 3: Cross multiply
   13,910.56x = 19,196.16 × 7,942.06
4. Step 4: Simplify right side
   13,910.56x = 152,457,054.49
5. Step 5: Solve for x
   x = 152,457,054.49/13,910.56
6. Step 6: Final answer
   x = 10,959.81