Finding the Fourth Proportional to 25,315.56, 34,935.25 and 13,985.33

Step by Step Solution

1. Step 1: Write the proportion equation
   25,315.56 : 34,935.25 = 13,985.33 : x
2. Step 2: Convert to fraction form
   25,315.56/34,935.25 = 13,985.33/x
3. Step 3: Cross multiply
   25,315.56x = 34,935.25 × 13,985.33
4. Step 4: Simplify right side
   25,315.56x = 488,581,111.23
5. Step 5: Solve for x
   x = 488,581,111.23/25,315.56
6. Step 6: Final answer
   x = 19,299.63