Finding the Fourth Proportional to 10,443.12, 15,670.89 and 4,203.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.12 : 15,670.89 = 4,203.69 : x
2. Step 2: Convert to fraction form
   10,443.12/15,670.89 = 4,203.69/x
3. Step 3: Cross multiply
   10,443.12x = 15,670.89 × 4,203.69
4. Step 4: Simplify right side
   10,443.12x = 65,875,563.58
5. Step 5: Solve for x
   x = 65,875,563.58/10,443.12
6. Step 6: Final answer
   x = 6,308.03