Finding the Fourth Proportional to 31,012.66, 42,796.47 and 17,585.11

Step by Step Solution

1. Step 1: Write the proportion equation
   31,012.66 : 42,796.47 = 17,585.11 : x
2. Step 2: Convert to fraction form
   31,012.66/42,796.47 = 17,585.11/x
3. Step 3: Cross multiply
   31,012.66x = 42,796.47 × 17,585.11
4. Step 4: Simplify right side
   31,012.66x = 752,580,632.56
5. Step 5: Solve for x
   x = 752,580,632.56/31,012.66
6. Step 6: Final answer
   x = 24,266.88