Finding the Fourth Proportional to 13,778.24, 19,014.12 and 7,490.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,778.24 : 19,014.12 = 7,490.72 : x
2. Step 2: Convert to fraction form
   13,778.24/19,014.12 = 7,490.72/x
3. Step 3: Cross multiply
   13,778.24x = 19,014.12 × 7,490.72
4. Step 4: Simplify right side
   13,778.24x = 142,429,448.97
5. Step 5: Solve for x
   x = 142,429,448.97/13,778.24
6. Step 6: Final answer
   x = 10,337.27