Finding the Fourth Proportional to 13,780.89, 19,017.63 and 7,493.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780.89 : 19,017.63 = 7,493.25 : x
2. Step 2: Convert to fraction form
   13,780.89/19,017.63 = 7,493.25/x
3. Step 3: Cross multiply
   13,780.89x = 19,017.63 × 7,493.25
4. Step 4: Simplify right side
   13,780.89x = 142,503,856.00
5. Step 5: Solve for x
   x = 142,503,856.00/13,780.89
6. Step 6: Final answer
   x = 10,340.69