Finding the Fourth Proportional to 13,891.32, 19,170.15 and 7,603.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,891.32 : 19,170.15 = 7,603.83 : x
2. Step 2: Convert to fraction form
   13,891.32/19,170.15 = 7,603.83/x
3. Step 3: Cross multiply
   13,891.32x = 19,170.15 × 7,603.83
4. Step 4: Simplify right side
   13,891.32x = 145,766,561.67
5. Step 5: Solve for x
   x = 145,766,561.67/13,891.32
6. Step 6: Final answer
   x = 10,493.36