Finding the Fourth Proportional to 13,243.13, 19,838.71 and 7,684.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,243.13 : 19,838.71 = 7,684.81 : x
2. Step 2: Convert to fraction form
   13,243.13/19,838.71 = 7,684.81/x
3. Step 3: Cross multiply
   13,243.13x = 19,838.71 × 7,684.81
4. Step 4: Simplify right side
   13,243.13x = 152,456,677.00
5. Step 5: Solve for x
   x = 152,456,677.00/13,243.13
6. Step 6: Final answer
   x = 11,512.13