Finding the Fourth Proportional to 13,778.72, 19,014.66 and 7,491.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,778.72 : 19,014.66 = 7,491.08 : x
2. Step 2: Convert to fraction form
   13,778.72/19,014.66 = 7,491.08/x
3. Step 3: Cross multiply
   13,778.72x = 19,014.66 × 7,491.08
4. Step 4: Simplify right side
   13,778.72x = 142,440,339.23
5. Step 5: Solve for x
   x = 142,440,339.23/13,778.72
6. Step 6: Final answer
   x = 10,337.70