Finding the Fourth Proportional to 16,112.52, 22,235.28 and 9,402.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,112.52 : 22,235.28 = 9,402.76 : x
2. Step 2: Convert to fraction form
   16,112.52/22,235.28 = 9,402.76/x
3. Step 3: Cross multiply
   16,112.52x = 22,235.28 × 9,402.76
4. Step 4: Simplify right side
   16,112.52x = 209,073,001.37
5. Step 5: Solve for x
   x = 209,073,001.37/16,112.52
6. Step 6: Final answer
   x = 12,975.81