Finding the Fourth Proportional to 118,841.52, 178,142.32 and 74,499.42

Step by Step Solution

1. Step 1: Write the proportion equation
   118,841.52 : 178,142.32 = 74,499.42 : x
2. Step 2: Convert to fraction form
   118,841.52/178,142.32 = 74,499.42/x
3. Step 3: Cross multiply
   118,841.52x = 178,142.32 × 74,499.42
4. Step 4: Simplify right side
   118,841.52x = 13,271,499,144.96
5. Step 5: Solve for x
   x = 13,271,499,144.96/118,841.52
6. Step 6: Final answer
   x = 111,673.93