Finding the Fourth Proportional to 15,925.71, 21,978.23 and 8,852.25

Step by Step Solution

1. Step 1: Write the proportion equation
   15,925.71 : 21,978.23 = 8,852.25 : x
2. Step 2: Convert to fraction form
   15,925.71/21,978.23 = 8,852.25/x
3. Step 3: Cross multiply
   15,925.71x = 21,978.23 × 8,852.25
4. Step 4: Simplify right side
   15,925.71x = 194,556,786.52
5. Step 5: Solve for x
   x = 194,556,786.52/15,925.71
6. Step 6: Final answer
   x = 12,216.52