Finding the Fourth Proportional to 9,870.28, 14,811.25 and 3,634.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.28 : 14,811.25 = 3,634.67 : x
2. Step 2: Convert to fraction form
   9,870.28/14,811.25 = 3,634.67/x
3. Step 3: Cross multiply
   9,870.28x = 14,811.25 × 3,634.67
4. Step 4: Simplify right side
   9,870.28x = 53,834,006.04
5. Step 5: Solve for x
   x = 53,834,006.04/9,870.28
6. Step 6: Final answer
   x = 5,454.15