Finding the Fourth Proportional to 10,005.74, 13,807.46 and 5,529.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,005.74 : 13,807.46 = 5,529.39 : x
2. Step 2: Convert to fraction form
   10,005.74/13,807.46 = 5,529.39/x
3. Step 3: Cross multiply
   10,005.74x = 13,807.46 × 5,529.39
4. Step 4: Simplify right side
   10,005.74x = 76,346,831.25
5. Step 5: Solve for x
   x = 76,346,831.25/10,005.74
6. Step 6: Final answer
   x = 7,630.31