Finding the Fourth Proportional to 78,355.32, 108,127.38 and 42,544.55

Step by Step Solution

1. Step 1: Write the proportion equation
   78,355.32 : 108,127.38 = 42,544.55 : x
2. Step 2: Convert to fraction form
   78,355.32/108,127.38 = 42,544.55/x
3. Step 3: Cross multiply
   78,355.32x = 108,127.38 × 42,544.55
4. Step 4: Simplify right side
   78,355.32x = 4,600,231,154.64
5. Step 5: Solve for x
   x = 4,600,231,154.64/78,355.32
6. Step 6: Final answer
   x = 58,709.88