Finding the Fourth Proportional to 11,449.93, 15,806.43 and 7,203.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,449.93 : 15,806.43 = 7,203.05 : x
2. Step 2: Convert to fraction form
   11,449.93/15,806.43 = 7,203.05/x
3. Step 3: Cross multiply
   11,449.93x = 15,806.43 × 7,203.05
4. Step 4: Simplify right side
   11,449.93x = 113,854,520.18
5. Step 5: Solve for x
   x = 113,854,520.18/11,449.93
6. Step 6: Final answer
   x = 9,943.69