Finding the Fourth Proportional to 9,718.72, 13,411.74 and 5,526.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,718.72 : 13,411.74 = 5,526.97 : x
2. Step 2: Convert to fraction form
   9,718.72/13,411.74 = 5,526.97/x
3. Step 3: Cross multiply
   9,718.72x = 13,411.74 × 5,526.97
4. Step 4: Simplify right side
   9,718.72x = 74,126,284.63
5. Step 5: Solve for x
   x = 74,126,284.63/9,718.72
6. Step 6: Final answer
   x = 7,627.17