Finding the Fourth Proportional to 215,302, 323,005.20 and 67,558

Step by Step Solution

1. Step 1: Write the proportion equation
   215,302 : 323,005.20 = 67,558 : x
2. Step 2: Convert to fraction form
   215,302/323,005.20 = 67,558/x
3. Step 3: Cross multiply
   215,302x = 323,005.20 × 67,558
4. Step 4: Simplify right side
   215,302x = 21,821,585,301.60
5. Step 5: Solve for x
   x = 21,821,585,301.60/215,302
6. Step 6: Final answer
   x = 101,353.38