Finding the Fourth Proportional to 21,947.94, 32,920.38 and 7,156.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,947.94 : 32,920.38 = 7,156.52 : x
2. Step 2: Convert to fraction form
   21,947.94/32,920.38 = 7,156.52/x
3. Step 3: Cross multiply
   21,947.94x = 32,920.38 × 7,156.52
4. Step 4: Simplify right side
   21,947.94x = 235,595,357.88
5. Step 5: Solve for x
   x = 235,595,357.88/21,947.94
6. Step 6: Final answer
   x = 10,734.28