Finding the Fourth Proportional to 31,137.62, 42,970.86 and 17,710.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,137.62 : 42,970.86 = 17,710.81 : x
2. Step 2: Convert to fraction form
   31,137.62/42,970.86 = 17,710.81/x
3. Step 3: Cross multiply
   31,137.62x = 42,970.86 × 17,710.81
4. Step 4: Simplify right side
   31,137.62x = 761,048,737.00
5. Step 5: Solve for x
   x = 761,048,737.00/31,137.62
6. Step 6: Final answer
   x = 24,441.45