Finding the Fourth Proportional to 13,808.25, 19,055.46 and 7,520.64

Step by Step Solution

1. Step 1: Write the proportion equation
   13,808.25 : 19,055.46 = 7,520.64 : x
2. Step 2: Convert to fraction form
   13,808.25/19,055.46 = 7,520.64/x
3. Step 3: Cross multiply
   13,808.25x = 19,055.46 × 7,520.64
4. Step 4: Simplify right side
   13,808.25x = 143,309,254.69
5. Step 5: Solve for x
   x = 143,309,254.69/13,808.25
6. Step 6: Final answer
   x = 10,378.52