Finding the Fourth Proportional to 10,320.80, 14,242.73 and 5,605.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,320.80 : 14,242.73 = 5,605.11 : x
2. Step 2: Convert to fraction form
   10,320.80/14,242.73 = 5,605.11/x
3. Step 3: Cross multiply
   10,320.80x = 14,242.73 × 5,605.11
4. Step 4: Simplify right side
   10,320.80x = 79,832,040.32
5. Step 5: Solve for x
   x = 79,832,040.32/10,320.80
6. Step 6: Final answer
   x = 7,735.07