Finding the Fourth Proportional to 13,818.34, 19,069.33 and 7,530.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,818.34 : 19,069.33 = 7,530.72 : x
2. Step 2: Convert to fraction form
   13,818.34/19,069.33 = 7,530.72/x
3. Step 3: Cross multiply
   13,818.34x = 19,069.33 × 7,530.72
4. Step 4: Simplify right side
   13,818.34x = 143,605,708.60
5. Step 5: Solve for x
   x = 143,605,708.60/13,818.34
6. Step 6: Final answer
   x = 10,392.40