Finding the Fourth Proportional to 21,946.58, 32,920.71 and 7,155.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,946.58 : 32,920.71 = 7,155.62 : x
2. Step 2: Convert to fraction form
   21,946.58/32,920.71 = 7,155.62/x
3. Step 3: Cross multiply
   21,946.58x = 32,920.71 × 7,155.62
4. Step 4: Simplify right side
   21,946.58x = 235,568,090.89
5. Step 5: Solve for x
   x = 235,568,090.89/21,946.58
6. Step 6: Final answer
   x = 10,733.70