Finding the Fourth Proportional to 13,808.43, 19,055.76 and 7,520.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,808.43 : 19,055.76 = 7,520.82 : x
2. Step 2: Convert to fraction form
   13,808.43/19,055.76 = 7,520.82/x
3. Step 3: Cross multiply
   13,808.43x = 19,055.76 × 7,520.82
4. Step 4: Simplify right side
   13,808.43x = 143,314,940.92
5. Step 5: Solve for x
   x = 143,314,940.92/13,808.43
6. Step 6: Final answer
   x = 10,378.80