Finding the Fourth Proportional to 78,424.54, 108,226.52 and 42,614.55

Step by Step Solution

1. Step 1: Write the proportion equation
   78,424.54 : 108,226.52 = 42,614.55 : x
2. Step 2: Convert to fraction form
   78,424.54/108,226.52 = 42,614.55/x
3. Step 3: Cross multiply
   78,424.54x = 108,226.52 × 42,614.55
4. Step 4: Simplify right side
   78,424.54x = 4,612,024,447.87
5. Step 5: Solve for x
   x = 4,612,024,447.87/78,424.54
6. Step 6: Final answer
   x = 58,808.43