Finding the Fourth Proportional to 21,423.29, 32,138.73 and 7,384.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,423.29 : 32,138.73 = 7,384.82 : x
2. Step 2: Convert to fraction form
   21,423.29/32,138.73 = 7,384.82/x
3. Step 3: Cross multiply
   21,423.29x = 32,138.73 × 7,384.82
4. Step 4: Simplify right side
   21,423.29x = 237,338,575.38
5. Step 5: Solve for x
   x = 237,338,575.38/21,423.29
6. Step 6: Final answer
   x = 11,078.53