Finding the Fourth Proportional to 13,892.69, 19,171.17 and 7,603.85

Step by Step Solution

1. Step 1: Write the proportion equation
   13,892.69 : 19,171.17 = 7,603.85 : x
2. Step 2: Convert to fraction form
   13,892.69/19,171.17 = 7,603.85/x
3. Step 3: Cross multiply
   13,892.69x = 19,171.17 × 7,603.85
4. Step 4: Simplify right side
   13,892.69x = 145,774,605.15
5. Step 5: Solve for x
   x = 145,774,605.15/13,892.69
6. Step 6: Final answer
   x = 10,492.90