Finding the Fourth Proportional to 12,842.34, 17,722.78 and 7,253.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,842.34 : 17,722.78 = 7,253.34 : x
2. Step 2: Convert to fraction form
   12,842.34/17,722.78 = 7,253.34/x
3. Step 3: Cross multiply
   12,842.34x = 17,722.78 × 7,253.34
4. Step 4: Simplify right side
   12,842.34x = 128,549,349.09
5. Step 5: Solve for x
   x = 128,549,349.09/12,842.34
6. Step 6: Final answer
   x = 10,009.81