Finding the Fourth Proportional to 78,367.68, 108,144.42 and 42,556.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,367.68 : 108,144.42 = 42,556.92 : x
2. Step 2: Convert to fraction form
   78,367.68/108,144.42 = 42,556.92/x
3. Step 3: Cross multiply
   78,367.68x = 108,144.42 × 42,556.92
4. Step 4: Simplify right side
   78,367.68x = 4,602,293,430.39
5. Step 5: Solve for x
   x = 4,602,293,430.39/78,367.68
6. Step 6: Final answer
   x = 58,726.93