Finding the Fourth Proportional to 268,123.34, 369,995.78 and 153,404.26

Step by Step Solution

1. Step 1: Write the proportion equation
   268,123.34 : 369,995.78 = 153,404.26 : x
2. Step 2: Convert to fraction form
   268,123.34/369,995.78 = 153,404.26/x
3. Step 3: Cross multiply
   268,123.34x = 369,995.78 × 153,404.26
4. Step 4: Simplify right side
   268,123.34x = 56,758,928,834.02
5. Step 5: Solve for x
   x = 56,758,928,834.02/268,123.34
6. Step 6: Final answer
   x = 211,689.62