Finding the Fourth Proportional to 10,448.01, 15,674.61 and 5,185.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,448.01 : 15,674.61 = 5,185.49 : x
2. Step 2: Convert to fraction form
   10,448.01/15,674.61 = 5,185.49/x
3. Step 3: Cross multiply
   10,448.01x = 15,674.61 × 5,185.49
4. Step 4: Simplify right side
   10,448.01x = 81,280,606.74
5. Step 5: Solve for x
   x = 81,280,606.74/10,448.01
6. Step 6: Final answer
   x = 7,779.53