Finding the Fourth Proportional to 31,137.73, 42,971.01 and 17,710.91

Step by Step Solution

1. Step 1: Write the proportion equation
   31,137.73 : 42,971.01 = 17,710.91 : x
2. Step 2: Convert to fraction form
   31,137.73/42,971.01 = 17,710.91/x
3. Step 3: Cross multiply
   31,137.73x = 42,971.01 × 17,710.91
4. Step 4: Simplify right side
   31,137.73x = 761,055,798.15
5. Step 5: Solve for x
   x = 761,055,798.15/31,137.73
6. Step 6: Final answer
   x = 24,441.60