Finding the Fourth Proportional to 401,612.76, 602,061.18 and 152,469.72

Step by Step Solution

1. Step 1: Write the proportion equation
   401,612.76 : 602,061.18 = 152,469.72 : x
2. Step 2: Convert to fraction form
   401,612.76/602,061.18 = 152,469.72/x
3. Step 3: Cross multiply
   401,612.76x = 602,061.18 × 152,469.72
4. Step 4: Simplify right side
   401,612.76x = 91,796,099,537.47
5. Step 5: Solve for x
   x = 91,796,099,537.47/401,612.76
6. Step 6: Final answer
   x = 228,568.68