Finding the Fourth Proportional to 157,474.42, 236,142.38 and 57,608.72

Step by Step Solution

1. Step 1: Write the proportion equation
   157,474.42 : 236,142.38 = 57,608.72 : x
2. Step 2: Convert to fraction form
   157,474.42/236,142.38 = 57,608.72/x
3. Step 3: Cross multiply
   157,474.42x = 236,142.38 × 57,608.72
4. Step 4: Simplify right side
   157,474.42x = 13,603,860,249.55
5. Step 5: Solve for x
   x = 13,603,860,249.55/157,474.42
6. Step 6: Final answer
   x = 86,387.75