Finding the Fourth Proportional to 21,484.38, 32,225.27 and 12,774.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,484.38 : 32,225.27 = 12,774.72 : x
2. Step 2: Convert to fraction form
   21,484.38/32,225.27 = 12,774.72/x
3. Step 3: Cross multiply
   21,484.38x = 32,225.27 × 12,774.72
4. Step 4: Simplify right side
   21,484.38x = 411,668,801.17
5. Step 5: Solve for x
   x = 411,668,801.17/21,484.38
6. Step 6: Final answer
   x = 19,161.31