Finding the Fourth Proportional to 78,445.25, 108,253.79 and 42,635.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,445.25 : 108,253.79 = 42,635.48 : x
2. Step 2: Convert to fraction form
   78,445.25/108,253.79 = 42,635.48/x
3. Step 3: Cross multiply
   78,445.25x = 108,253.79 × 42,635.48
4. Step 4: Simplify right side
   78,445.25x = 4,615,451,544.02
5. Step 5: Solve for x
   x = 4,615,451,544.02/78,445.25
6. Step 6: Final answer
   x = 58,836.60