Finding the Fourth Proportional to 10,925.52, 16,384.78 and 3,528.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,925.52 : 16,384.78 = 3,528.40 : x
2. Step 2: Convert to fraction form
   10,925.52/16,384.78 = 3,528.40/x
3. Step 3: Cross multiply
   10,925.52x = 16,384.78 × 3,528.40
4. Step 4: Simplify right side
   10,925.52x = 57,812,057.75
5. Step 5: Solve for x
   x = 57,812,057.75/10,925.52
6. Step 6: Final answer
   x = 5,291.47