Finding the Fourth Proportional to 59,687.98, 89,518.30 and 26,390.03

Step by Step Solution

1. Step 1: Write the proportion equation
   59,687.98 : 89,518.30 = 26,390.03 : x
2. Step 2: Convert to fraction form
   59,687.98/89,518.30 = 26,390.03/x
3. Step 3: Cross multiply
   59,687.98x = 89,518.30 × 26,390.03
4. Step 4: Simplify right side
   59,687.98x = 2,362,390,108.98
5. Step 5: Solve for x
   x = 2,362,390,108.98/59,687.98
6. Step 6: Final answer
   x = 39,578.99