Finding the Fourth Proportional to 78,635, 108,514.68 and 42,825.64

Step by Step Solution

1. Step 1: Write the proportion equation
   78,635 : 108,514.68 = 42,825.64 : x
2. Step 2: Convert to fraction form
   78,635/108,514.68 = 42,825.64/x
3. Step 3: Cross multiply
   78,635x = 108,514.68 × 42,825.64
4. Step 4: Simplify right side
   78,635x = 4,647,210,620.40
5. Step 5: Solve for x
   x = 4,647,210,620.40/78,635
6. Step 6: Final answer
   x = 59,098.50