Finding the Fourth Proportional to 13,815.27, 19,065.06 and 7,527.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,815.27 : 19,065.06 = 7,527.69 : x
2. Step 2: Convert to fraction form
   13,815.27/19,065.06 = 7,527.69/x
3. Step 3: Cross multiply
   13,815.27x = 19,065.06 × 7,527.69
4. Step 4: Simplify right side
   13,815.27x = 143,515,861.51
5. Step 5: Solve for x
   x = 143,515,861.51/13,815.27
6. Step 6: Final answer
   x = 10,388.21