Finding the Fourth Proportional to 13,902.25, 19,185.42 and 7,933.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,902.25 : 19,185.42 = 7,933.80 : x
2. Step 2: Convert to fraction form
   13,902.25/19,185.42 = 7,933.80/x
3. Step 3: Cross multiply
   13,902.25x = 19,185.42 × 7,933.80
4. Step 4: Simplify right side
   13,902.25x = 152,213,285.20
5. Step 5: Solve for x
   x = 152,213,285.20/13,902.25
6. Step 6: Final answer
   x = 10,948.82