Finding the Fourth Proportional to 10,921.64, 16,384.61 and 3,527.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,921.64 : 16,384.61 = 3,527.96 : x
2. Step 2: Convert to fraction form
   10,921.64/16,384.61 = 3,527.96/x
3. Step 3: Cross multiply
   10,921.64x = 16,384.61 × 3,527.96
4. Step 4: Simplify right side
   10,921.64x = 57,804,175.59
5. Step 5: Solve for x
   x = 57,804,175.59/10,921.64
6. Step 6: Final answer
   x = 5,292.63