Finding the Fourth Proportional to 78,367.37, 108,148.31 and 42,557.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,367.37 : 108,148.31 = 42,557.38 : x
2. Step 2: Convert to fraction form
   78,367.37/108,148.31 = 42,557.38/x
3. Step 3: Cross multiply
   78,367.37x = 108,148.31 × 42,557.38
4. Step 4: Simplify right side
   78,367.37x = 4,602,508,792.93
5. Step 5: Solve for x
   x = 4,602,508,792.93/78,367.37
6. Step 6: Final answer
   x = 58,729.92