Finding the Fourth Proportional to 10,399.39, 15,607.27 and 4,849.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,399.39 : 15,607.27 = 4,849.88 : x
2. Step 2: Convert to fraction form
   10,399.39/15,607.27 = 4,849.88/x
3. Step 3: Cross multiply
   10,399.39x = 15,607.27 × 4,849.88
4. Step 4: Simplify right side
   10,399.39x = 75,693,386.63
5. Step 5: Solve for x
   x = 75,693,386.63/10,399.39
6. Step 6: Final answer
   x = 7,278.64