Finding the Fourth Proportional to 31,073.28, 42,880.74 and 16,925.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,073.28 : 42,880.74 = 16,925.82 : x
2. Step 2: Convert to fraction form
   31,073.28/42,880.74 = 16,925.82/x
3. Step 3: Cross multiply
   31,073.28x = 42,880.74 × 16,925.82
4. Step 4: Simplify right side
   31,073.28x = 725,791,686.71
5. Step 5: Solve for x
   x = 725,791,686.71/31,073.28
6. Step 6: Final answer
   x = 23,357.42