Finding the Fourth Proportional to 13,815.02, 19,064.72 and 7,527.44

Step by Step Solution

1. Step 1: Write the proportion equation
   13,815.02 : 19,064.72 = 7,527.44 : x
2. Step 2: Convert to fraction form
   13,815.02/19,064.72 = 7,527.44/x
3. Step 3: Cross multiply
   13,815.02x = 19,064.72 × 7,527.44
4. Step 4: Simplify right side
   13,815.02x = 143,508,535.92
5. Step 5: Solve for x
   x = 143,508,535.92/13,815.02
6. Step 6: Final answer
   x = 10,387.86