Finding the Fourth Proportional to 42,610.14, 58,728.51 and 31,981.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,610.14 : 58,728.51 = 31,981.32 : x
2. Step 2: Convert to fraction form
   42,610.14/58,728.51 = 31,981.32/x
3. Step 3: Cross multiply
   42,610.14x = 58,728.51 × 31,981.32
4. Step 4: Simplify right side
   42,610.14x = 1,878,215,271.43
5. Step 5: Solve for x
   x = 1,878,215,271.43/42,610.14
6. Step 6: Final answer
   x = 44,079.07