Finding the Fourth Proportional to 13,821.10, 19,073.60 and 7,852.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,821.10 : 19,073.60 = 7,852.58 : x
2. Step 2: Convert to fraction form
   13,821.10/19,073.60 = 7,852.58/x
3. Step 3: Cross multiply
   13,821.10x = 19,073.60 × 7,852.58
4. Step 4: Simplify right side
   13,821.10x = 149,776,969.89
5. Step 5: Solve for x
   x = 149,776,969.89/13,821.10
6. Step 6: Final answer
   x = 10,836.83