Finding the Fourth Proportional to 31,075.77, 42,884.84 and 17,647.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,075.77 : 42,884.84 = 17,647.30 : x
2. Step 2: Convert to fraction form
   31,075.77/42,884.84 = 17,647.30/x
3. Step 3: Cross multiply
   31,075.77x = 42,884.84 × 17,647.30
4. Step 4: Simplify right side
   31,075.77x = 756,801,636.93
5. Step 5: Solve for x
   x = 756,801,636.93/31,075.77
6. Step 6: Final answer
   x = 24,353.43