Finding the Fourth Proportional to 31,137.17, 42,970.23 and 17,710.35

Step by Step Solution

1. Step 1: Write the proportion equation
   31,137.17 : 42,970.23 = 17,710.35 : x
2. Step 2: Convert to fraction form
   31,137.17/42,970.23 = 17,710.35/x
3. Step 3: Cross multiply
   31,137.17x = 42,970.23 × 17,710.35
4. Step 4: Simplify right side
   31,137.17x = 761,017,812.88
5. Step 5: Solve for x
   x = 761,017,812.88/31,137.17
6. Step 6: Final answer
   x = 24,440.82