Finding the Fourth Proportional to 13,069.16, 19,603.94 and 7,213.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,069.16 : 19,603.94 = 7,213.04 : x
2. Step 2: Convert to fraction form
   13,069.16/19,603.94 = 7,213.04/x
3. Step 3: Cross multiply
   13,069.16x = 19,603.94 × 7,213.04
4. Step 4: Simplify right side
   13,069.16x = 141,404,003.38
5. Step 5: Solve for x
   x = 141,404,003.38/13,069.16
6. Step 6: Final answer
   x = 10,819.67