Finding the Fourth Proportional to 118,842.52, 178,143.82 and 74,500.42

Step by Step Solution

1. Step 1: Write the proportion equation
   118,842.52 : 178,143.82 = 74,500.42 : x
2. Step 2: Convert to fraction form
   118,842.52/178,143.82 = 74,500.42/x
3. Step 3: Cross multiply
   118,842.52x = 178,143.82 × 74,500.42
4. Step 4: Simplify right side
   118,842.52x = 13,271,789,037.90
5. Step 5: Solve for x
   x = 13,271,789,037.90/118,842.52
6. Step 6: Final answer
   x = 111,675.43