Finding the Fourth Proportional to 13,820.78, 19,063 and 8,518.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,820.78 : 19,063 = 8,518.52 : x
2. Step 2: Convert to fraction form
   13,820.78/19,063 = 8,518.52/x
3. Step 3: Cross multiply
   13,820.78x = 19,063 × 8,518.52
4. Step 4: Simplify right side
   13,820.78x = 162,388,546.76
5. Step 5: Solve for x
   x = 162,388,546.76/13,820.78
6. Step 6: Final answer
   x = 11,749.59