Finding the Fourth Proportional to 13,902.54, 19,185.12 and 7,934.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,902.54 : 19,185.12 = 7,934.10 : x
2. Step 2: Convert to fraction form
   13,902.54/19,185.12 = 7,934.10/x
3. Step 3: Cross multiply
   13,902.54x = 19,185.12 × 7,934.10
4. Step 4: Simplify right side
   13,902.54x = 152,216,660.59
5. Step 5: Solve for x
   x = 152,216,660.59/13,902.54
6. Step 6: Final answer
   x = 10,948.84