Finding the Fourth Proportional to 401,721.18, 602,581.59 and 152,403.18

Step by Step Solution

1. Step 1: Write the proportion equation
   401,721.18 : 602,581.59 = 152,403.18 : x
2. Step 2: Convert to fraction form
   401,721.18/602,581.59 = 152,403.18/x
3. Step 3: Cross multiply
   401,721.18x = 602,581.59 × 152,403.18
4. Step 4: Simplify right side
   401,721.18x = 91,835,350,525.46
5. Step 5: Solve for x
   x = 91,835,350,525.46/401,721.18
6. Step 6: Final answer
   x = 228,604.70