Finding the Fourth Proportional to 9,877.31, 14,821.81 and 3,641.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,877.31 : 14,821.81 = 3,641.70 : x
2. Step 2: Convert to fraction form
   9,877.31/14,821.81 = 3,641.70/x
3. Step 3: Cross multiply
   9,877.31x = 14,821.81 × 3,641.70
4. Step 4: Simplify right side
   9,877.31x = 53,976,585.48
5. Step 5: Solve for x
   x = 53,976,585.48/9,877.31
6. Step 6: Final answer
   x = 5,464.71