Finding the Fourth Proportional to 9,714.06, 13,404.69 and 5,521.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,714.06 : 13,404.69 = 5,521.50 : x
2. Step 2: Convert to fraction form
   9,714.06/13,404.69 = 5,521.50/x
3. Step 3: Cross multiply
   9,714.06x = 13,404.69 × 5,521.50
4. Step 4: Simplify right side
   9,714.06x = 74,013,995.84
5. Step 5: Solve for x
   x = 74,013,995.84/9,714.06
6. Step 6: Final answer
   x = 7,619.26