Finding the Fourth Proportional to 25,485.84, 38,241.72 and 13,173.84

Step by Step Solution

1. Step 1: Write the proportion equation
   25,485.84 : 38,241.72 = 13,173.84 : x
2. Step 2: Convert to fraction form
   25,485.84/38,241.72 = 13,173.84/x
3. Step 3: Cross multiply
   25,485.84x = 38,241.72 × 13,173.84
4. Step 4: Simplify right side
   25,485.84x = 503,790,300.60
5. Step 5: Solve for x
   x = 503,790,300.60/25,485.84
6. Step 6: Final answer
   x = 19,767.46