Finding the Fourth Proportional to 9,870.84, 14,810.40 and 3,631.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.84 : 14,810.40 = 3,631.50 : x
2. Step 2: Convert to fraction form
   9,870.84/14,810.40 = 3,631.50/x
3. Step 3: Cross multiply
   9,870.84x = 14,810.40 × 3,631.50
4. Step 4: Simplify right side
   9,870.84x = 53,783,967.60
5. Step 5: Solve for x
   x = 53,783,967.60/9,870.84
6. Step 6: Final answer
   x = 5,448.77