Finding the Fourth Proportional to 102,826.80, 154,182.89 and 31,729.25

Step by Step Solution

1. Step 1: Write the proportion equation
   102,826.80 : 154,182.89 = 31,729.25 : x
2. Step 2: Convert to fraction form
   102,826.80/154,182.89 = 31,729.25/x
3. Step 3: Cross multiply
   102,826.80x = 154,182.89 × 31,729.25
4. Step 4: Simplify right side
   102,826.80x = 4,892,107,927.31
5. Step 5: Solve for x
   x = 4,892,107,927.31/102,826.80
6. Step 6: Final answer
   x = 47,576.20