Finding the Fourth Proportional to 21,947.34, 32,924.52 and 7,155.12

Step by Step Solution

1. Step 1: Write the proportion equation
   21,947.34 : 32,924.52 = 7,155.12 : x
2. Step 2: Convert to fraction form
   21,947.34/32,924.52 = 7,155.12/x
3. Step 3: Cross multiply
   21,947.34x = 32,924.52 × 7,155.12
4. Step 4: Simplify right side
   21,947.34x = 235,578,891.54
5. Step 5: Solve for x
   x = 235,578,891.54/21,947.34
6. Step 6: Final answer
   x = 10,733.82