Finding the Fourth Proportional to 9,946.03, 13,725.41 and 7,405.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,946.03 : 13,725.41 = 7,405.15 : x
2. Step 2: Convert to fraction form
   9,946.03/13,725.41 = 7,405.15/x
3. Step 3: Cross multiply
   9,946.03x = 13,725.41 × 7,405.15
4. Step 4: Simplify right side
   9,946.03x = 101,638,719.86
5. Step 5: Solve for x
   x = 101,638,719.86/9,946.03
6. Step 6: Final answer
   x = 10,219.02