Finding the Fourth Proportional to 13,026.58, 19,548.06 and 8,105.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,026.58 : 19,548.06 = 8,105.86 : x
2. Step 2: Convert to fraction form
   13,026.58/19,548.06 = 8,105.86/x
3. Step 3: Cross multiply
   13,026.58x = 19,548.06 × 8,105.86
4. Step 4: Simplify right side
   13,026.58x = 158,453,837.63
5. Step 5: Solve for x
   x = 158,453,837.63/13,026.58
6. Step 6: Final answer
   x = 12,163.89