Finding the Fourth Proportional to 21,955.08, 30,300.54 and 12,525

Step by Step Solution

1. Step 1: Write the proportion equation
   21,955.08 : 30,300.54 = 12,525 : x
2. Step 2: Convert to fraction form
   21,955.08/30,300.54 = 12,525/x
3. Step 3: Cross multiply
   21,955.08x = 30,300.54 × 12,525
4. Step 4: Simplify right side
   21,955.08x = 379,514,263.50
5. Step 5: Solve for x
   x = 379,514,263.50/21,955.08
6. Step 6: Final answer
   x = 17,285.94