Finding the Fourth Proportional to 31,129.36, 42,958.32 and 17,700.61

Step by Step Solution

1. Step 1: Write the proportion equation
   31,129.36 : 42,958.32 = 17,700.61 : x
2. Step 2: Convert to fraction form
   31,129.36/42,958.32 = 17,700.61/x
3. Step 3: Cross multiply
   31,129.36x = 42,958.32 × 17,700.61
4. Step 4: Simplify right side
   31,129.36x = 760,388,468.58
5. Step 5: Solve for x
   x = 760,388,468.58/31,129.36
6. Step 6: Final answer
   x = 24,426.73