Finding the Fourth Proportional to 13,904.49, 19,185.32 and 7,938.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,904.49 : 19,185.32 = 7,938.10 : x
2. Step 2: Convert to fraction form
   13,904.49/19,185.32 = 7,938.10/x
3. Step 3: Cross multiply
   13,904.49x = 19,185.32 × 7,938.10
4. Step 4: Simplify right side
   13,904.49x = 152,295,032.52
5. Step 5: Solve for x
   x = 152,295,032.52/13,904.49
6. Step 6: Final answer
   x = 10,952.94