Finding the Fourth Proportional to 31,021.98, 46,532.34 and 7,648.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,021.98 : 46,532.34 = 7,648.62 : x
2. Step 2: Convert to fraction form
   31,021.98/46,532.34 = 7,648.62/x
3. Step 3: Cross multiply
   31,021.98x = 46,532.34 × 7,648.62
4. Step 4: Simplify right side
   31,021.98x = 355,908,186.37
5. Step 5: Solve for x
   x = 355,908,186.37/31,021.98
6. Step 6: Final answer
   x = 11,472.77