Finding the Fourth Proportional to 9,960.81, 14,938.25 and 3,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,960.81 : 14,938.25 = 3,385.50 : x
2. Step 2: Convert to fraction form
   9,960.81/14,938.25 = 3,385.50/x
3. Step 3: Cross multiply
   9,960.81x = 14,938.25 × 3,385.50
4. Step 4: Simplify right side
   9,960.81x = 50,573,428.45
5. Step 5: Solve for x
   x = 50,573,428.45/9,960.81
6. Step 6: Final answer
   x = 5,077.24