Finding the Fourth Proportional to 31,072.56, 42,880.32 and 16,925.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,072.56 : 42,880.32 = 16,925.52 : x
2. Step 2: Convert to fraction form
   31,072.56/42,880.32 = 16,925.52/x
3. Step 3: Cross multiply
   31,072.56x = 42,880.32 × 16,925.52
4. Step 4: Simplify right side
   31,072.56x = 725,771,713.77
5. Step 5: Solve for x
   x = 725,771,713.77/31,072.56
6. Step 6: Final answer
   x = 23,357.32