Finding the Fourth Proportional to 19,185.94, 26,476.20 and 10,688.05

Step by Step Solution

1. Step 1: Write the proportion equation
   19,185.94 : 26,476.20 = 10,688.05 : x
2. Step 2: Convert to fraction form
   19,185.94/26,476.20 = 10,688.05/x
3. Step 3: Cross multiply
   19,185.94x = 26,476.20 × 10,688.05
4. Step 4: Simplify right side
   19,185.94x = 282,978,982.51
5. Step 5: Solve for x
   x = 282,978,982.51/19,185.94
6. Step 6: Final answer
   x = 14,749.29