Finding the Fourth Proportional to 31,065.94, 42,870.63 and 17,637.58

Step by Step Solution

1. Step 1: Write the proportion equation
   31,065.94 : 42,870.63 = 17,637.58 : x
2. Step 2: Convert to fraction form
   31,065.94/42,870.63 = 17,637.58/x
3. Step 3: Cross multiply
   31,065.94x = 42,870.63 × 17,637.58
4. Step 4: Simplify right side
   31,065.94x = 756,134,166.28
5. Step 5: Solve for x
   x = 756,134,166.28/31,065.94
6. Step 6: Final answer
   x = 24,339.65