Finding the Fourth Proportional to 31,127.60, 42,956.08 and 17,698.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,127.60 : 42,956.08 = 17,698.56 : x
2. Step 2: Convert to fraction form
   31,127.60/42,956.08 = 17,698.56/x
3. Step 3: Cross multiply
   31,127.60x = 42,956.08 × 17,698.56
4. Step 4: Simplify right side
   31,127.60x = 760,260,759.24
5. Step 5: Solve for x
   x = 760,260,759.24/31,127.60
6. Step 6: Final answer
   x = 24,424.01