Finding the Fourth Proportional to 31,073.68, 42,881.45 and 16,926.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,073.68 : 42,881.45 = 16,926.53 : x
2. Step 2: Convert to fraction form
   31,073.68/42,881.45 = 16,926.53/x
3. Step 3: Cross multiply
   31,073.68x = 42,881.45 × 16,926.53
4. Step 4: Simplify right side
   31,073.68x = 725,833,977.78
5. Step 5: Solve for x
   x = 725,833,977.78/31,073.68
6. Step 6: Final answer
   x = 23,358.48