Finding the Fourth Proportional to 10,901.85, 16,355.40 and 3,507

Step by Step Solution

1. Step 1: Write the proportion equation
   10,901.85 : 16,355.40 = 3,507 : x
2. Step 2: Convert to fraction form
   10,901.85/16,355.40 = 3,507/x
3. Step 3: Cross multiply
   10,901.85x = 16,355.40 × 3,507
4. Step 4: Simplify right side
   10,901.85x = 57,358,387.80
5. Step 5: Solve for x
   x = 57,358,387.80/10,901.85
6. Step 6: Final answer
   x = 5,261.34