Finding the Fourth Proportional to 215,421.34, 323,179.98 and 65,673.27

Step by Step Solution

1. Step 1: Write the proportion equation
   215,421.34 : 323,179.98 = 65,673.27 : x
2. Step 2: Convert to fraction form
   215,421.34/323,179.98 = 65,673.27/x
3. Step 3: Cross multiply
   215,421.34x = 323,179.98 × 65,673.27
4. Step 4: Simplify right side
   215,421.34x = 21,224,286,085.13
5. Step 5: Solve for x
   x = 21,224,286,085.13/215,421.34
6. Step 6: Final answer
   x = 98,524.53