Finding the Fourth Proportional to 25,342.79, 34,973.16 and 13,857.94

Step by Step Solution

1. Step 1: Write the proportion equation
   25,342.79 : 34,973.16 = 13,857.94 : x
2. Step 2: Convert to fraction form
   25,342.79/34,973.16 = 13,857.94/x
3. Step 3: Cross multiply
   25,342.79x = 34,973.16 × 13,857.94
4. Step 4: Simplify right side
   25,342.79x = 484,655,952.89
5. Step 5: Solve for x
   x = 484,655,952.89/25,342.79
6. Step 6: Final answer
   x = 19,124.02