Finding the Fourth Proportional to 31,978.52, 47,975.88 and 11,201.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,978.52 : 47,975.88 = 11,201.48 : x
2. Step 2: Convert to fraction form
   31,978.52/47,975.88 = 11,201.48/x
3. Step 3: Cross multiply
   31,978.52x = 47,975.88 × 11,201.48
4. Step 4: Simplify right side
   31,978.52x = 537,400,860.30
5. Step 5: Solve for x
   x = 537,400,860.30/31,978.52
6. Step 6: Final answer
   x = 16,805.06