Finding the Fourth Proportional to 9,929.98, 13,704.46 and 5,681.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,929.98 : 13,704.46 = 5,681.43 : x
2. Step 2: Convert to fraction form
   9,929.98/13,704.46 = 5,681.43/x
3. Step 3: Cross multiply
   9,929.98x = 13,704.46 × 5,681.43
4. Step 4: Simplify right side
   9,929.98x = 77,860,930.18
5. Step 5: Solve for x
   x = 77,860,930.18/9,929.98
6. Step 6: Final answer
   x = 7,841.00