Finding the Fourth Proportional to 10,530.72, 15,805.64 and 5,604.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,530.72 : 15,805.64 = 5,604.48 : x
2. Step 2: Convert to fraction form
   10,530.72/15,805.64 = 5,604.48/x
3. Step 3: Cross multiply
   10,530.72x = 15,805.64 × 5,604.48
4. Step 4: Simplify right side
   10,530.72x = 88,582,393.27
5. Step 5: Solve for x
   x = 88,582,393.27/10,530.72
6. Step 6: Final answer
   x = 8,411.81