Finding the Fourth Proportional to 31,076.39, 42,886.73 and 16,930.01

Step by Step Solution

1. Step 1: Write the proportion equation
   31,076.39 : 42,886.73 = 16,930.01 : x
2. Step 2: Convert to fraction form
   31,076.39/42,886.73 = 16,930.01/x
3. Step 3: Cross multiply
   31,076.39x = 42,886.73 × 16,930.01
4. Step 4: Simplify right side
   31,076.39x = 726,072,683.12
5. Step 5: Solve for x
   x = 726,072,683.12/31,076.39
6. Step 6: Final answer
   x = 23,364.13