Finding the Fourth Proportional to 31,075.26, 42,884.15 and 17,646.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,075.26 : 42,884.15 = 17,646.79 : x
2. Step 2: Convert to fraction form
   31,075.26/42,884.15 = 17,646.79/x
3. Step 3: Cross multiply
   31,075.26x = 42,884.15 × 17,646.79
4. Step 4: Simplify right side
   31,075.26x = 756,767,589.38
5. Step 5: Solve for x
   x = 756,767,589.38/31,075.26
6. Step 6: Final answer
   x = 24,352.74