Finding the Fourth Proportional to 10,925.30, 16,390.38 and 3,133.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,925.30 : 16,390.38 = 3,133.50 : x
2. Step 2: Convert to fraction form
   10,925.30/16,390.38 = 3,133.50/x
3. Step 3: Cross multiply
   10,925.30x = 16,390.38 × 3,133.50
4. Step 4: Simplify right side
   10,925.30x = 51,359,240.06
5. Step 5: Solve for x
   x = 51,359,240.06/10,925.30
6. Step 6: Final answer
   x = 4,700.95