Finding the Fourth Proportional to 28,835.52, 39,796.56 and 16,260

Step by Step Solution

1. Step 1: Write the proportion equation
   28,835.52 : 39,796.56 = 16,260 : x
2. Step 2: Convert to fraction form
   28,835.52/39,796.56 = 16,260/x
3. Step 3: Cross multiply
   28,835.52x = 39,796.56 × 16,260
4. Step 4: Simplify right side
   28,835.52x = 647,092,065.60
5. Step 5: Solve for x
   x = 647,092,065.60/28,835.52
6. Step 6: Final answer
   x = 22,440.80