Finding the Fourth Proportional to 42,559.89, 63,910.98 and 26,586.59

Step by Step Solution

1. Step 1: Write the proportion equation
   42,559.89 : 63,910.98 = 26,586.59 : x
2. Step 2: Convert to fraction form
   42,559.89/63,910.98 = 26,586.59/x
3. Step 3: Cross multiply
   42,559.89x = 63,910.98 × 26,586.59
4. Step 4: Simplify right side
   42,559.89x = 1,699,175,021.76
5. Step 5: Solve for x
   x = 1,699,175,021.76/42,559.89
6. Step 6: Final answer
   x = 39,924.33