Finding the Fourth Proportional to 13,806.18, 19,052.56 and 7,518.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,806.18 : 19,052.56 = 7,518.58 : x
2. Step 2: Convert to fraction form
   13,806.18/19,052.56 = 7,518.58/x
3. Step 3: Cross multiply
   13,806.18x = 19,052.56 × 7,518.58
4. Step 4: Simplify right side
   13,806.18x = 143,248,196.56
5. Step 5: Solve for x
   x = 143,248,196.56/13,806.18
6. Step 6: Final answer
   x = 10,375.66