Finding the Fourth Proportional to 31,751.33, 47,623.34 and 8,379.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,751.33 : 47,623.34 = 8,379.59 : x
2. Step 2: Convert to fraction form
   31,751.33/47,623.34 = 8,379.59/x
3. Step 3: Cross multiply
   31,751.33x = 47,623.34 × 8,379.59
4. Step 4: Simplify right side
   31,751.33x = 399,064,063.63
5. Step 5: Solve for x
   x = 399,064,063.63/31,751.33
6. Step 6: Final answer
   x = 12,568.42