Finding the Fourth Proportional to 9,871.67, 14,813.34 and 3,636.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,871.67 : 14,813.34 = 3,636.07 : x
2. Step 2: Convert to fraction form
   9,871.67/14,813.34 = 3,636.07/x
3. Step 3: Cross multiply
   9,871.67x = 14,813.34 × 3,636.07
4. Step 4: Simplify right side
   9,871.67x = 53,862,341.17
5. Step 5: Solve for x
   x = 53,862,341.17/9,871.67
6. Step 6: Final answer
   x = 5,456.25