Finding the Fourth Proportional to 13,775.72, 19,011 and 7,488.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,775.72 : 19,011 = 7,488.56 : x
2. Step 2: Convert to fraction form
   13,775.72/19,011 = 7,488.56/x
3. Step 3: Cross multiply
   13,775.72x = 19,011 × 7,488.56
4. Step 4: Simplify right side
   13,775.72x = 142,365,014.16
5. Step 5: Solve for x
   x = 142,365,014.16/13,775.72
6. Step 6: Final answer
   x = 10,334.49