Finding the Fourth Proportional to 21,456.84, 32,189.58 and 7,417.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,456.84 : 32,189.58 = 7,417.38 : x
2. Step 2: Convert to fraction form
   21,456.84/32,189.58 = 7,417.38/x
3. Step 3: Cross multiply
   21,456.84x = 32,189.58 × 7,417.38
4. Step 4: Simplify right side
   21,456.84x = 238,762,346.90
5. Step 5: Solve for x
   x = 238,762,346.90/21,456.84
6. Step 6: Final answer
   x = 11,127.56