Finding the Fourth Proportional to 9,980.58, 13,772.97 and 5,733.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980.58 : 13,772.97 = 5,733.02 : x
2. Step 2: Convert to fraction form
   9,980.58/13,772.97 = 5,733.02/x
3. Step 3: Cross multiply
   9,980.58x = 13,772.97 × 5,733.02
4. Step 4: Simplify right side
   9,980.58x = 78,960,674.25
5. Step 5: Solve for x
   x = 78,960,674.25/9,980.58
6. Step 6: Final answer
   x = 7,911.43