Finding the Fourth Proportional to 17,631.86, 26,439.98 and 8,264.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,631.86 : 26,439.98 = 8,264.31 : x
2. Step 2: Convert to fraction form
   17,631.86/26,439.98 = 8,264.31/x
3. Step 3: Cross multiply
   17,631.86x = 26,439.98 × 8,264.31
4. Step 4: Simplify right side
   17,631.86x = 218,508,017.59
5. Step 5: Solve for x
   x = 218,508,017.59/17,631.86
6. Step 6: Final answer
   x = 12,392.80