Finding the Fourth Proportional to 11,003.56, 16,507.74 and 4,429.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,003.56 : 16,507.74 = 4,429.96 : x
2. Step 2: Convert to fraction form
   11,003.56/16,507.74 = 4,429.96/x
3. Step 3: Cross multiply
   11,003.56x = 16,507.74 × 4,429.96
4. Step 4: Simplify right side
   11,003.56x = 73,128,627.89
5. Step 5: Solve for x
   x = 73,128,627.89/11,003.56
6. Step 6: Final answer
   x = 6,645.91