Finding the Fourth Proportional to 21,767.04, 32,621.76 and 7,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,767.04 : 32,621.76 = 7,902.72 : x
2. Step 2: Convert to fraction form
   21,767.04/32,621.76 = 7,902.72/x
3. Step 3: Cross multiply
   21,767.04x = 32,621.76 × 7,902.72
4. Step 4: Simplify right side
   21,767.04x = 257,800,635.19
5. Step 5: Solve for x
   x = 257,800,635.19/21,767.04
6. Step 6: Final answer
   x = 11,843.62