Finding the Fourth Proportional to 10,901.30, 16,353.15 and 3,977.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,901.30 : 16,353.15 = 3,977.30 : x
2. Step 2: Convert to fraction form
   10,901.30/16,353.15 = 3,977.30/x
3. Step 3: Cross multiply
   10,901.30x = 16,353.15 × 3,977.30
4. Step 4: Simplify right side
   10,901.30x = 65,041,383.50
5. Step 5: Solve for x
   x = 65,041,383.50/10,901.30
6. Step 6: Final answer
   x = 5,966.39