Finding the Fourth Proportional to 31,074.16, 42,881.52 and 16,926.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,074.16 : 42,881.52 = 16,926.16 : x
2. Step 2: Convert to fraction form
   31,074.16/42,881.52 = 16,926.16/x
3. Step 3: Cross multiply
   31,074.16x = 42,881.52 × 16,926.16
4. Step 4: Simplify right side
   31,074.16x = 725,819,468.56
5. Step 5: Solve for x
   x = 725,819,468.56/31,074.16
6. Step 6: Final answer
   x = 23,357.65