Finding the Fourth Proportional to 31,072.93, 42,880.42 and 16,925.77

Step by Step Solution

1. Step 1: Write the proportion equation
   31,072.93 : 42,880.42 = 16,925.77 : x
2. Step 2: Convert to fraction form
   31,072.93/42,880.42 = 16,925.77/x
3. Step 3: Cross multiply
   31,072.93x = 42,880.42 × 16,925.77
4. Step 4: Simplify right side
   31,072.93x = 725,784,201.18
5. Step 5: Solve for x
   x = 725,784,201.18/31,072.93
6. Step 6: Final answer
   x = 23,357.45