Finding the Fourth Proportional to 13,768.52, 19,000.91 and 7,480.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,768.52 : 19,000.91 = 7,480.89 : x
2. Step 2: Convert to fraction form
   13,768.52/19,000.91 = 7,480.89/x
3. Step 3: Cross multiply
   13,768.52x = 19,000.91 × 7,480.89
4. Step 4: Simplify right side
   13,768.52x = 142,143,736.31
5. Step 5: Solve for x
   x = 142,143,736.31/13,768.52
6. Step 6: Final answer
   x = 10,323.82