Finding the Fourth Proportional to 272,578.72, 376,158.59 and 151,717.40

Step by Step Solution

1. Step 1: Write the proportion equation
   272,578.72 : 376,158.59 = 151,717.40 : x
2. Step 2: Convert to fraction form
   272,578.72/376,158.59 = 151,717.40/x
3. Step 3: Cross multiply
   272,578.72x = 376,158.59 × 151,717.40
4. Step 4: Simplify right side
   272,578.72x = 57,069,803,262.47
5. Step 5: Solve for x
   x = 57,069,803,262.47/272,578.72
6. Step 6: Final answer
   x = 209,369.99