Finding the Fourth Proportional to 25,659.69, 38,435.53 and 13,141.68

Step by Step Solution

1. Step 1: Write the proportion equation
   25,659.69 : 38,435.53 = 13,141.68 : x
2. Step 2: Convert to fraction form
   25,659.69/38,435.53 = 13,141.68/x
3. Step 3: Cross multiply
   25,659.69x = 38,435.53 × 13,141.68
4. Step 4: Simplify right side
   25,659.69x = 505,107,435.89
5. Step 5: Solve for x
   x = 505,107,435.89/25,659.69
6. Step 6: Final answer
   x = 19,684.86