Finding the Fourth Proportional to 31,034, 42,826.56 and 16,886.60

Step by Step Solution

1. Step 1: Write the proportion equation
   31,034 : 42,826.56 = 16,886.60 : x
2. Step 2: Convert to fraction form
   31,034/42,826.56 = 16,886.60/x
3. Step 3: Cross multiply
   31,034x = 42,826.56 × 16,886.60
4. Step 4: Simplify right side
   31,034x = 723,194,988.10
5. Step 5: Solve for x
   x = 723,194,988.10/31,034
6. Step 6: Final answer
   x = 23,303.31