Finding the Fourth Proportional to 17,427.86, 26,128.38 and 8,655.98

Step by Step Solution

1. Step 1: Write the proportion equation
   17,427.86 : 26,128.38 = 8,655.98 : x
2. Step 2: Convert to fraction form
   17,427.86/26,128.38 = 8,655.98/x
3. Step 3: Cross multiply
   17,427.86x = 26,128.38 × 8,655.98
4. Step 4: Simplify right side
   17,427.86x = 226,166,734.71
5. Step 5: Solve for x
   x = 226,166,734.71/17,427.86
6. Step 6: Final answer
   x = 12,977.31