Finding the Fourth Proportional to 103,176.89, 154,765.55 and 28,298.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,176.89 : 154,765.55 = 28,298.10 : x
2. Step 2: Convert to fraction form
   103,176.89/154,765.55 = 28,298.10/x
3. Step 3: Cross multiply
   103,176.89x = 154,765.55 × 28,298.10
4. Step 4: Simplify right side
   103,176.89x = 4,379,571,010.46
5. Step 5: Solve for x
   x = 4,379,571,010.46/103,176.89
6. Step 6: Final answer
   x = 42,447.21