Finding the Fourth Proportional to 9,714.52, 13,405.80 and 5,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,714.52 : 13,405.80 = 5,522.50 : x
2. Step 2: Convert to fraction form
   9,714.52/13,405.80 = 5,522.50/x
3. Step 3: Cross multiply
   9,714.52x = 13,405.80 × 5,522.50
4. Step 4: Simplify right side
   9,714.52x = 74,033,530.50
5. Step 5: Solve for x
   x = 74,033,530.50/9,714.52
6. Step 6: Final answer
   x = 7,620.91