Finding the Fourth Proportional to 31,129.05, 42,958.53 and 17,700.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,129.05 : 42,958.53 = 17,700.27 : x
2. Step 2: Convert to fraction form
   31,129.05/42,958.53 = 17,700.27/x
3. Step 3: Cross multiply
   31,129.05x = 42,958.53 × 17,700.27
4. Step 4: Simplify right side
   31,129.05x = 760,377,579.80
5. Step 5: Solve for x
   x = 760,377,579.80/31,129.05
6. Step 6: Final answer
   x = 24,426.62