Finding the Fourth Proportional to 213,868.82, 295,152.72 and 123,223.16

Step by Step Solution

1. Step 1: Write the proportion equation
   213,868.82 : 295,152.72 = 123,223.16 : x
2. Step 2: Convert to fraction form
   213,868.82/295,152.72 = 123,223.16/x
3. Step 3: Cross multiply
   213,868.82x = 295,152.72 × 123,223.16
4. Step 4: Simplify right side
   213,868.82x = 36,369,650,841.00
5. Step 5: Solve for x
   x = 36,369,650,841.00/213,868.82
6. Step 6: Final answer
   x = 170,055.88