Finding the Fourth Proportional to 21,182.00, 31,752.34 and 10,085.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,182.00 : 31,752.34 = 10,085.72 : x
2. Step 2: Convert to fraction form
   21,182.00/31,752.34 = 10,085.72/x
3. Step 3: Cross multiply
   21,182.00x = 31,752.34 × 10,085.72
4. Step 4: Simplify right side
   21,182.00x = 320,245,026.61
5. Step 5: Solve for x
   x = 320,245,026.61/21,182.00
6. Step 6: Final answer
   x = 15,118.74