Finding the Fourth Proportional to 31,137.52, 42,969.55 and 17,708.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,137.52 : 42,969.55 = 17,708.76 : x
2. Step 2: Convert to fraction form
   31,137.52/42,969.55 = 17,708.76/x
3. Step 3: Cross multiply
   31,137.52x = 42,969.55 × 17,708.76
4. Step 4: Simplify right side
   31,137.52x = 760,937,144.87
5. Step 5: Solve for x
   x = 760,937,144.87/31,137.52
6. Step 6: Final answer
   x = 24,437.95