Finding the Fourth Proportional to 9,870.99, 14,812.31 and 3,635.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.99 : 14,812.31 = 3,635.37 : x
2. Step 2: Convert to fraction form
   9,870.99/14,812.31 = 3,635.37/x
3. Step 3: Cross multiply
   9,870.99x = 14,812.31 × 3,635.37
4. Step 4: Simplify right side
   9,870.99x = 53,848,227.40
5. Step 5: Solve for x
   x = 53,848,227.40/9,870.99
6. Step 6: Final answer
   x = 5,455.20