Finding the Fourth Proportional to 10,009.40, 15,016.56 and 3,435.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,009.40 : 15,016.56 = 3,435.68 : x
2. Step 2: Convert to fraction form
   10,009.40/15,016.56 = 3,435.68/x
3. Step 3: Cross multiply
   10,009.40x = 15,016.56 × 3,435.68
4. Step 4: Simplify right side
   10,009.40x = 51,592,094.86
5. Step 5: Solve for x
   x = 51,592,094.86/10,009.40
6. Step 6: Final answer
   x = 5,154.36