Finding the Fourth Proportional to 9,800.15, 14,700.23 and 3,955.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,800.15 : 14,700.23 = 3,955.40 : x
2. Step 2: Convert to fraction form
   9,800.15/14,700.23 = 3,955.40/x
3. Step 3: Cross multiply
   9,800.15x = 14,700.23 × 3,955.40
4. Step 4: Simplify right side
   9,800.15x = 58,145,196.46
5. Step 5: Solve for x
   x = 58,145,196.46/9,800.15
6. Step 6: Final answer
   x = 5,933.10