Finding the Fourth Proportional to 25,810.98, 35,610.72 and 15,053.40

Step by Step Solution

1. Step 1: Write the proportion equation
   25,810.98 : 35,610.72 = 15,053.40 : x
2. Step 2: Convert to fraction form
   25,810.98/35,610.72 = 15,053.40/x
3. Step 3: Cross multiply
   25,810.98x = 35,610.72 × 15,053.40
4. Step 4: Simplify right side
   25,810.98x = 536,062,412.45
5. Step 5: Solve for x
   x = 536,062,412.45/25,810.98
6. Step 6: Final answer
   x = 20,768.77