Finding the Fourth Proportional to 31,065.81, 42,875.34 and 17,634.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,065.81 : 42,875.34 = 17,634.28 : x
2. Step 2: Convert to fraction form
   31,065.81/42,875.34 = 17,634.28/x
3. Step 3: Cross multiply
   31,065.81x = 42,875.34 × 17,634.28
4. Step 4: Simplify right side
   31,065.81x = 756,075,750.66
5. Step 5: Solve for x
   x = 756,075,750.66/31,065.81
6. Step 6: Final answer
   x = 24,337.87