Finding the Fourth Proportional to 9,498.72, 13,106.66 and 5,720.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.72 : 13,106.66 = 5,720.97 : x
2. Step 2: Convert to fraction form
   9,498.72/13,106.66 = 5,720.97/x
3. Step 3: Cross multiply
   9,498.72x = 13,106.66 × 5,720.97
4. Step 4: Simplify right side
   9,498.72x = 74,982,780.06
5. Step 5: Solve for x
   x = 74,982,780.06/9,498.72
6. Step 6: Final answer
   x = 7,893.99