Finding the Fourth Proportional to 10,081.19, 13,912.56 and 5,605.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.19 : 13,912.56 = 5,605.03 : x
2. Step 2: Convert to fraction form
   10,081.19/13,912.56 = 5,605.03/x
3. Step 3: Cross multiply
   10,081.19x = 13,912.56 × 5,605.03
4. Step 4: Simplify right side
   10,081.19x = 77,980,333.57
5. Step 5: Solve for x
   x = 77,980,333.57/10,081.19
6. Step 6: Final answer
   x = 7,735.23