Finding the Fourth Proportional to 13,815.34, 19,063.74 and 7,847.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,815.34 : 19,063.74 = 7,847.52 : x
2. Step 2: Convert to fraction form
   13,815.34/19,063.74 = 7,847.52/x
3. Step 3: Cross multiply
   13,815.34x = 19,063.74 × 7,847.52
4. Step 4: Simplify right side
   13,815.34x = 149,603,080.92
5. Step 5: Solve for x
   x = 149,603,080.92/13,815.34
6. Step 6: Final answer
   x = 10,828.77