Finding the Fourth Proportional to 31,063.53, 42,867.72 and 16,916.43

Step by Step Solution

1. Step 1: Write the proportion equation
   31,063.53 : 42,867.72 = 16,916.43 : x
2. Step 2: Convert to fraction form
   31,063.53/42,867.72 = 16,916.43/x
3. Step 3: Cross multiply
   31,063.53x = 42,867.72 × 16,916.43
4. Step 4: Simplify right side
   31,063.53x = 725,168,784.64
5. Step 5: Solve for x
   x = 725,168,784.64/31,063.53
6. Step 6: Final answer
   x = 23,344.70