Finding the Fourth Proportional to 10,921.52, 16,385.72 and 3,901.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,921.52 : 16,385.72 = 3,901.38 : x
2. Step 2: Convert to fraction form
   10,921.52/16,385.72 = 3,901.38/x
3. Step 3: Cross multiply
   10,921.52x = 16,385.72 × 3,901.38
4. Step 4: Simplify right side
   10,921.52x = 63,926,930.05
5. Step 5: Solve for x
   x = 63,926,930.05/10,921.52
6. Step 6: Final answer
   x = 5,853.30