Finding the Fourth Proportional to 9,748.35, 13,436.92 and 7,620.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,748.35 : 13,436.92 = 7,620.12 : x
2. Step 2: Convert to fraction form
   9,748.35/13,436.92 = 7,620.12/x
3. Step 3: Cross multiply
   9,748.35x = 13,436.92 × 7,620.12
4. Step 4: Simplify right side
   9,748.35x = 102,390,942.83
5. Step 5: Solve for x
   x = 102,390,942.83/9,748.35
6. Step 6: Final answer
   x = 10,503.41