Finding the Fourth Proportional to 10,784.22, 14,864.31 and 7,421.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,784.22 : 14,864.31 = 7,421.34 : x
2. Step 2: Convert to fraction form
   10,784.22/14,864.31 = 7,421.34/x
3. Step 3: Cross multiply
   10,784.22x = 14,864.31 × 7,421.34
4. Step 4: Simplify right side
   10,784.22x = 110,313,098.38
5. Step 5: Solve for x
   x = 110,313,098.38/10,784.22
6. Step 6: Final answer
   x = 10,229.12