Finding the Fourth Proportional to 25,055.68, 34,498.15 and 21,271

Step by Step Solution

1. Step 1: Write the proportion equation
   25,055.68 : 34,498.15 = 21,271 : x
2. Step 2: Convert to fraction form
   25,055.68/34,498.15 = 21,271/x
3. Step 3: Cross multiply
   25,055.68x = 34,498.15 × 21,271
4. Step 4: Simplify right side
   25,055.68x = 733,810,148.65
5. Step 5: Solve for x
   x = 733,810,148.65/25,055.68
6. Step 6: Final answer
   x = 29,287.18