Finding the Fourth Proportional to 13,800.78, 19,035.41 and 8,498.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,800.78 : 19,035.41 = 8,498.52 : x
2. Step 2: Convert to fraction form
   13,800.78/19,035.41 = 8,498.52/x
3. Step 3: Cross multiply
   13,800.78x = 19,035.41 × 8,498.52
4. Step 4: Simplify right side
   13,800.78x = 161,772,770.10
5. Step 5: Solve for x
   x = 161,772,770.10/13,800.78
6. Step 6: Final answer
   x = 11,722.00