Finding the Fourth Proportional to 123,379.47, 185,143.23 and 53,258.67

Step by Step Solution

1. Step 1: Write the proportion equation
   123,379.47 : 185,143.23 = 53,258.67 : x
2. Step 2: Convert to fraction form
   123,379.47/185,143.23 = 53,258.67/x
3. Step 3: Cross multiply
   123,379.47x = 185,143.23 × 53,258.67
4. Step 4: Simplify right side
   123,379.47x = 9,860,482,189.30
5. Step 5: Solve for x
   x = 9,860,482,189.30/123,379.47
6. Step 6: Final answer
   x = 79,919.96