Finding the Fourth Proportional to 42,515.79, 58,752.72 and 31,886.97

Step by Step Solution

1. Step 1: Write the proportion equation
   42,515.79 : 58,752.72 = 31,886.97 : x
2. Step 2: Convert to fraction form
   42,515.79/58,752.72 = 31,886.97/x
3. Step 3: Cross multiply
   42,515.79x = 58,752.72 × 31,886.97
4. Step 4: Simplify right side
   42,515.79x = 1,873,446,320.80
5. Step 5: Solve for x
   x = 1,873,446,320.80/42,515.79
6. Step 6: Final answer
   x = 44,064.71