Finding the Fourth Proportional to 13,822.43, 19,075.46 and 7,855.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,822.43 : 19,075.46 = 7,855.10 : x
2. Step 2: Convert to fraction form
   13,822.43/19,075.46 = 7,855.10/x
3. Step 3: Cross multiply
   13,822.43x = 19,075.46 × 7,855.10
4. Step 4: Simplify right side
   13,822.43x = 149,839,511.19
5. Step 5: Solve for x
   x = 149,839,511.19/13,822.43
6. Step 6: Final answer
   x = 10,840.32