Finding the Fourth Proportional to 78,634.44, 108,516.81 and 42,825.15

Step by Step Solution

1. Step 1: Write the proportion equation
   78,634.44 : 108,516.81 = 42,825.15 : x
2. Step 2: Convert to fraction form
   78,634.44/108,516.81 = 42,825.15/x
3. Step 3: Cross multiply
   78,634.44x = 108,516.81 × 42,825.15
4. Step 4: Simplify right side
   78,634.44x = 4,647,248,665.77
5. Step 5: Solve for x
   x = 4,647,248,665.77/78,634.44
6. Step 6: Final answer
   x = 59,099.41