Finding the Fourth Proportional to 11,971.29, 17,973.50 and 8,264.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11,971.29 : 17,973.50 = 8,264.37 : x
2. Step 2: Convert to fraction form
   11,971.29/17,973.50 = 8,264.37/x
3. Step 3: Cross multiply
   11,971.29x = 17,973.50 × 8,264.37
4. Step 4: Simplify right side
   11,971.29x = 148,539,612.87
5. Step 5: Solve for x
   x = 148,539,612.87/11,971.29
6. Step 6: Final answer
   x = 12,407.99