Finding the Fourth Proportional to 14,103.21, 19,462.55 and 7,815.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,103.21 : 19,462.55 = 7,815.69 : x
2. Step 2: Convert to fraction form
   14,103.21/19,462.55 = 7,815.69/x
3. Step 3: Cross multiply
   14,103.21x = 19,462.55 × 7,815.69
4. Step 4: Simplify right side
   14,103.21x = 152,113,218.33
5. Step 5: Solve for x
   x = 152,113,218.33/14,103.21
6. Step 6: Final answer
   x = 10,785.72