Finding the Fourth Proportional to 12,546.90, 18,826.71 and 5,971.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,546.90 : 18,826.71 = 5,971.86 : x
2. Step 2: Convert to fraction form
   12,546.90/18,826.71 = 5,971.86/x
3. Step 3: Cross multiply
   12,546.90x = 18,826.71 × 5,971.86
4. Step 4: Simplify right side
   12,546.90x = 112,430,476.38
5. Step 5: Solve for x
   x = 112,430,476.38/12,546.90
6. Step 6: Final answer
   x = 8,960.82