Finding the Fourth Proportional to 78,634.71, 108,512.52 and 42,824.81

Step by Step Solution

1. Step 1: Write the proportion equation
   78,634.71 : 108,512.52 = 42,824.81 : x
2. Step 2: Convert to fraction form
   78,634.71/108,512.52 = 42,824.81/x
3. Step 3: Cross multiply
   78,634.71x = 108,512.52 × 42,824.81
4. Step 4: Simplify right side
   78,634.71x = 4,647,027,509.06
5. Step 5: Solve for x
   x = 4,647,027,509.06/78,634.71
6. Step 6: Final answer
   x = 59,096.39