Finding the Fourth Proportional to 10,449.59, 15,664.39 and 3,874.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,449.59 : 15,664.39 = 3,874.01 : x
2. Step 2: Convert to fraction form
   10,449.59/15,664.39 = 3,874.01/x
3. Step 3: Cross multiply
   10,449.59x = 15,664.39 × 3,874.01
4. Step 4: Simplify right side
   10,449.59x = 60,684,003.50
5. Step 5: Solve for x
   x = 60,684,003.50/10,449.59
6. Step 6: Final answer
   x = 5,807.31