Finding the Fourth Proportional to 118,900.86, 178,357.58 and 30,155.16

Step by Step Solution

1. Step 1: Write the proportion equation
   118,900.86 : 178,357.58 = 30,155.16 : x
2. Step 2: Convert to fraction form
   118,900.86/178,357.58 = 30,155.16/x
3. Step 3: Cross multiply
   118,900.86x = 178,357.58 × 30,155.16
4. Step 4: Simplify right side
   118,900.86x = 5,378,401,211.34
5. Step 5: Solve for x
   x = 5,378,401,211.34/118,900.86
6. Step 6: Final answer
   x = 45,234.33