Finding the Fourth Proportional to 10,959.47, 16,428.79 and 3,558.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,959.47 : 16,428.79 = 3,558.75 : x
2. Step 2: Convert to fraction form
   10,959.47/16,428.79 = 3,558.75/x
3. Step 3: Cross multiply
   10,959.47x = 16,428.79 × 3,558.75
4. Step 4: Simplify right side
   10,959.47x = 58,465,956.41
5. Step 5: Solve for x
   x = 58,465,956.41/10,959.47
6. Step 6: Final answer
   x = 5,334.74