Finding the Fourth Proportional to 31,015.80, 42,804.42 and 17,589.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,015.80 : 42,804.42 = 17,589.50 : x
2. Step 2: Convert to fraction form
   31,015.80/42,804.42 = 17,589.50/x
3. Step 3: Cross multiply
   31,015.80x = 42,804.42 × 17,589.50
4. Step 4: Simplify right side
   31,015.80x = 752,908,345.59
5. Step 5: Solve for x
   x = 752,908,345.59/31,015.80
6. Step 6: Final answer
   x = 24,274.99