Finding the Fourth Proportional to 42,517.29, 58,754.79 and 31,888.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,517.29 : 58,754.79 = 31,888.47 : x
2. Step 2: Convert to fraction form
   42,517.29/58,754.79 = 31,888.47/x
3. Step 3: Cross multiply
   42,517.29x = 58,754.79 × 31,888.47
4. Step 4: Simplify right side
   42,517.29x = 1,873,600,358.27
5. Step 5: Solve for x
   x = 1,873,600,358.27/42,517.29
6. Step 6: Final answer
   x = 44,066.79