Finding the Fourth Proportional to 12,445.34, 17,174.61 and 7,409.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,445.34 : 17,174.61 = 7,409.75 : x
2. Step 2: Convert to fraction form
   12,445.34/17,174.61 = 7,409.75/x
3. Step 3: Cross multiply
   12,445.34x = 17,174.61 × 7,409.75
4. Step 4: Simplify right side
   12,445.34x = 127,259,480.57
5. Step 5: Solve for x
   x = 127,259,480.57/12,445.34
6. Step 6: Final answer
   x = 10,225.48