Finding the Fourth Proportional to 78,177.69, 107,884.76 and 42,367.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,177.69 : 107,884.76 = 42,367.68 : x
2. Step 2: Convert to fraction form
   78,177.69/107,884.76 = 42,367.68/x
3. Step 3: Cross multiply
   78,177.69x = 107,884.76 × 42,367.68
4. Step 4: Simplify right side
   78,177.69x = 4,570,826,776.72
5. Step 5: Solve for x
   x = 4,570,826,776.72/78,177.69
6. Step 6: Final answer
   x = 58,467.15