Finding the Fourth Proportional to 9,172.98, 13,761.50 and 3,907.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,172.98 : 13,761.50 = 3,907.98 : x
2. Step 2: Convert to fraction form
   9,172.98/13,761.50 = 3,907.98/x
3. Step 3: Cross multiply
   9,172.98x = 13,761.50 × 3,907.98
4. Step 4: Simplify right side
   9,172.98x = 53,779,647.23
5. Step 5: Solve for x
   x = 53,779,647.23/9,172.98
6. Step 6: Final answer
   x = 5,862.83