Finding the Fourth Proportional to 25,870.84, 35,710.50 and 16,808.60

Step by Step Solution

1. Step 1: Write the proportion equation
   25,870.84 : 35,710.50 = 16,808.60 : x
2. Step 2: Convert to fraction form
   25,870.84/35,710.50 = 16,808.60/x
3. Step 3: Cross multiply
   25,870.84x = 35,710.50 × 16,808.60
4. Step 4: Simplify right side
   25,870.84x = 600,243,510.30
5. Step 5: Solve for x
   x = 600,243,510.30/25,870.84
6. Step 6: Final answer
   x = 23,201.55